I think the water is getting into the piston and until its cleared, it causes the bolt from operating. Think of it as hydro lock of the piston in the gas system and until it is fired a couple of times to clear the water it will malfunction. You get water on both sides of the piston. The piston makes it harder for the water to drain. DI guns would just blow all the water into the bolt and out into the action. Good to know if I lose my MPX in a boating accident and just happen to find it later. Great job MAC.
Considering this issue likely cost them the military contract, I don't think this video is really any news to them. It's more newsworthy to owners who wouldn't expect a tablespoon of water to cause their gun not to work.
The water is slowing down the bolt to where it is sluggish enough to not eject spend casing - the fact that it blew through the other tests is amazing.
Had a ghm9mm. Looked everywhere, can't find anything close to the problem I had. Mine was having double feed every mag, and the mag would come off without pressing the mag release after 1200 rounds.... Sold it after I got my mpx.
@@danielshen3438 That sucks dude. I've had mine for a little over a year and its been perfect. Fed it hollowpoints, FMJ, steel case, +P, it ate everything without complaints. My only complaint is that i can't put on a vertical foregrip without triggering the feds.
Standard operating procedure for an M-16 family of weapon is to pull back slightly on the bolt to break the seal on the breech and to allow the water to drain out of the barrel. Unless the barrel is cold hammer forged, firing with water in the barrel can cause damage.
It’s great that you ran the test with the cover open and then closed. Unbiased, fair testing. Great work! I wonder if Sig will make rolling changes in production, and claim that it always worked with water?
I would like to propose an extra test of shaking the MPX vigorously after being submerged before firing. Can the hydro lock be cleared with only one shake? Two shakes? A full second of vehement swinging?
I didn't think of it but good question. Have a Gen 2, 8" barrel version. If ya shake it more than twice tho..... Anybody know why SIG abandoned that model? Add a brace and slimmer handguard and better trigger and it serves it's purpose well. Guess now I know why it came with that little 8" umbrella and a huge Ziploc bag. L8r.
Man I had NO IDEA that water could block gas/air from moving through a piston system! Thank God for the ‘EL Gauntlet’ test to explain physics to us! Now we can act all surprised that water stopped the gas from entering the gas block which then doesn’t allow the piston to cycle. Lol hell I’m glad that MAC, and everyone else, got Sig to tighten up their QC and this version MPX ACTUALLY works to begin with!!
@@hwi7114 yeah because the gas ports on the top of the barrel of most guns so it would drain out before he shot it. This one has something that’s allowing the water to keep it blocked.
Mine worked flawlessly when I tried this same test (fully submerged in water till bubbles came out) I was a little worried about it after watching this so I tried it myself... I used sig elite performance 9mm hollow points during my experiment also a well broken in mag! I honestly am at a loss for words, but I’ve heard some weird stories about the sig mpx in the past. Maybe some quality assurance issues going on or luck of the draw lol
Tim i just had a random thought while watching this video. I remember telling my fellow firearm enthusiasts about you when I was a sophomore in high school. That was almost 10 years now!
Just order the SIG micro umbrella and patent pending huge SIG Ziploc bag. Just found a backpack that my Gen 2, 8" barrel fits in without printing and now I gotta find a dang water proof one but thank goodness you found that weak spot. Hey, could attach one of those cans of air to it to blow out the gas tube if your do SEAL type missions or cant afford a poncho. My MPX is givin me THAT look. L8r.
From what I remember it was a bad idea to submerge an M60 in water as well. When the gas piston got wet it became a single shot until you pulled out the piston and dried it off.
i like to keep a Benelli M4 and BCM Recce 11 staged in the shallow end of the pool while swimming during summer months. i was going to add this MCX at the deep end, but now I have to rethink this plan entirely. i will also be asking for an umbrella for christmas. thx for the excellent video.
The MPX among competition shooters has a notorious reputation for being a picky gas system. Which makes sense because it's a locked breach gun operating a short stroke piston only with pistol pressures in the gas. Must be very tricky to tune. Adding water is probably screwing the gas expansion up so it doesn't have enough force to push the piston back.
"I don't know where you'd find yourself in a submerged situation where youd immediately have to bring your weapon up and use it." Mac obviously hasn't seen the movie Crawl 🐊
Its those tight tolerances that cause it to fail the water test. The water gets in but doesn't drain quickly and then the hydraulic pressures keep it from functioning. Probably if you gave it a coupla good shakes as you brought it out to break the vacuum so it can drain, it would probably work just fine.
I have a feeling it's from how short this version is. Its originally designed as a longer PCC with more length on the barrel. They probably initially tested the original and thought it was fine then chopped it down for the shorty and boom there you go. The longer version probably still has water issues, just less prevalent.
The dwell time would slightly increase, but the gas system itself is the same on all MPX barrels. I don't think the slightly increased dwell time would be enough to overcome the water in the piston tube. The water won't compress, so the gas will just take the path of least resistance and exit the barrel without cycling the action. The only hope is that the 16" barrel would have enough dwell time that the heat from the gas would evaporate the water in the piston tube, but I doubt that would happen and still have enough time/gas to cycle the bolt.
when tim dropped a teaser about this the other night on hank stranges podcast,this is not what i expected.so,if you fall off your dune buggy with it your ok,but if you fall out of your boat,your screwed.informative and entertaining as usual.
Might be why the Seals haven’t adopted this. Makes you wonder about the problems ahead for other Sig military products. I was a die hard Sig fan before they became all American made (and that hurts to say.). So I guess you could loosen some tolerances and over gas it but then it would wear quicker.
Wouldn't've made much difference in this video but my opinion is that in the future you should re-run the elements test too with the port cover open becuase you can drop your gun when the port cover is open too.
Never not once ever had a failure out of my MPX-K, apparently short stroke gas piston system doesn’t like to be filled with water, obviously effecting how it cycles, maybe hydro locking the piston 🤷🏻♂️
Probably viable in most situations where you don't have to swim with it and keep the barrel pointg upp in a storm (doubht the problem will occur in anything but heavy rain seeing as you need a big ammount of water) so, police aswell i gues, which might be why a coupple of policeforces uses it.
Well, this makes me wonder how the CMMG Banshee would fare. I wanted an MPX, but went with the Banshee because it was cheaper. Without a gas system to boff over the water,...I wonder how the rotary locking system of the Banshee would perform.
If you are always in situations where you have to fire from being completely submerged, one reevaluate your living situation and two get a different gun.
IMHO from engineering point of view - looks like gas port hole in barrel is too small that causes it to act like capillary holding water in it. So, I suggest that making that gas port hole bigger will fix the problem (but it may cause gun to become over-gassed).
Pretty sure the temperamental gas system is also the reason why sig hasn't been able to get a mpx out in other calibres. I wonder if opening up the gas port and running an adjustable gas system would help with this problem?
This is still clearly the best result so far. At least it cleared everything, fixed itself, didn't need the test to stop, or tools (tree stump) to get it working.
@@Shieldsz you have to scoop in barrel. The chance of dropping and landing in water deep enough to submerge the barrel is very slim. The others failed from dirt and sand. Go in your backyard and see how much more dirt is outside than water that would submerge a pcc.
Just for giggles could you try submerging the gun and giving it a quick tap and rack before firing to see if that lets the gas system drain? Given its success with the other elements I wouldn’t hold it against the MPX if a quick remedial action before firing was all it took to eliminate hydrolocking.
Garand Thumb's intro to his MPX review was done in the rain, and it worked just fine. I don't remember if he said it jammed in the actual review though.
Didn't you have similar issues with the MCX when you did a puddle test? In that video you thought it might have been the recoil spring channels in the receiver, they are pretty small and tight.
Apart from the Hydro-locking, I think the biggest take away is dust covers matter. The shape of both the Scorpion bolt and MPX have cuts and voids, that once filled, may pulled large chucks of dirt or mud into the action and killed the gun. MPX dust cover prevented that. I would like to see dust cover open on the test, just out of curiosity. As if you dropped the weapon while engaged.
not necesarilly if weep hole in tappet hole like a oil gallery in a crank shaft would be rearward travel of short gas stroke ,far behind the port .was thinking more revised tappet thtat had surface area removed like sand cuts to loosen friction there
Seems odd that such a small amount of water would interfere with the gas system so much. Water is incompressible, so in theory a little water shouldn't interfere with the push of the piston. I wonder if they have some weird geometry around the gas port that allows a couple drops to completely seal off the gas flow to the piston.
You have to do a follow up test with a mpx copperhead and the mpx first gen full size. What about the carbine version? Only then will we truly know the answer Tim!
I was so scared I was laying in bed cuddling my mpx telling her that no matter what the test revealed I wouldn't sell her.
Only if it dont rain
😆 I tell all my guns I love them all and would never sell them.
Same
2 days later the gun is sold...😂
Hopefully you have a "rainy day" gun. 😉
🎵A spoon full of water lets the mpx go down, the mpx goes down, the mpx goes down 🎶
Give a thumbs up if you sang it in your inner Mary Poppins voice lol
🤣🤣
In the most pathetic waaaay.....
LMFAO
This is an underrated comment
MPX: you can’t defeat me!!
Mud/Sand/Dirt: No, but he can!! *Rain appears*
Perhaps only reliable in desert regions...not very good.
*Water, my only weakness!* 💦
@HachiZenki it's called vodka
Raki is Greek lol
MPX after having a spoonful of water poured into its barrel: I'm jamming. I'M JAMMINNNNNGGG
@@EtherFoxonly a spoonful!
@@joelerk6298 The Balkans and Greece love their Rakia! Polenar Tactical is from Slovenia.
#Unbreakable
I wish I could put my wife's mother through the gauntlet. That Sea Monster is tuff.
😂
Bro, funniest thing I’ve heard all day. I was dying 🤣🤣
Same here... But perhaps a more brutal one. I hate that crazy old hag.
If she's under 400 pounds I'll bang that old battle ax for you ..... 🤔👍🏼😍👍🏼🐐💍🔨
Release the Kraken 🐲
I think the water is getting into the piston and until its cleared, it causes the bolt from operating. Think of it as hydro lock of the piston in the gas system and until it is fired a couple of times to clear the water it will malfunction. You get water on both sides of the piston. The piston makes it harder for the water to drain. DI guns would just blow all the water into the bolt and out into the action. Good to know if I lose my MPX in a boating accident and just happen to find it later. Great job MAC.
SIG CEO: “No more of our firearms go to the MAC channel!”
Now I want to se the B&T APC-9k and the SP-5k in the same situation, that's a really interesting result
sp5k gets my vote.
HK is the way.
That was a weird failure. And gold star on EVERYTHING else, including a double gauntlet...WTH ?
So the MPXs are like gremlins. They're cute until you get them wet.
I love it! 😂
I’m surprised there are not more gauntlet episodes, I would watch every one put out. Thanks MAC
*Nearest thing to a Fallout 10mm SMG I have ever seen*
_>Big Iron Plays in background_
@Fui Gebhardt1 "Sleepytime" for the win.
@Fui Gebhardt1 no trouble. Naa was a GRA item.
Have a good day my dude.
I'm happy to come across Fallout players here..
If they ever release this in 10mm I gotta have it for this reason
Every gauntlet gun needs a stump rating from 1 to 10
Who woulda thunk?! Water in the Gas system! Was not expecting that. Sig engineers are probably paying very close attention to this video right now.
Probably not, they are all. MCX!!!
If I know anything about Sig they'll say there are no issues while fixing it if enough people complain.
They should have tested this already. Instead they let the consumer do the testing for them
@@Spike-13 I don't think they didn't test it. They just think it's not problematic for the gun's intended purpose.
Considering this issue likely cost them the military contract, I don't think this video is really any news to them. It's more newsworthy to owners who wouldn't expect a tablespoon of water to cause their gun not to work.
I love seeing gauntlet tests again, these are my favorite videos from this channel
very interesting
That is super strange. Wouldn't have foreseen this nor the Scorpion to perform the way they did.
Don't get the CZ bois started again.
@@zachconroy1443 What do you mean again. They haven't stopped running around with pitch forks and torches.
So anytime you face a person with an MPX....you can disable their firearm with a super soaker...
hahahahaha...
@Guess What? Who's dumb? I am simply noting that a little water sees to affect the this firearms gas system...
The water is slowing down the bolt to where it is sluggish enough to not eject spend casing - the fact that it blew through the other tests is amazing.
I'd like to see the B&T GHM9 tackle the gauntlet next.
APC9 also
Had a ghm9mm. Looked everywhere, can't find anything close to the problem I had. Mine was having double feed every mag, and the mag would come off without pressing the mag release after 1200 rounds.... Sold it after I got my mpx.
@@danielshen3438 That sucks dude. I've had mine for a little over a year and its been perfect. Fed it hollowpoints, FMJ, steel case, +P, it ate everything without complaints. My only complaint is that i can't put on a vertical foregrip without triggering the feds.
@@Serttok damn! Hahaha.
@@equuspallidus I think it was made to take a shot at the CZ Scorpion EVO.
Impressive, other than the water. Great test Tim!
Standard operating procedure for an M-16 family of weapon is to pull back slightly on the bolt to break the seal on the breech and to allow the water to drain out of the barrel. Unless the barrel is cold hammer forged, firing with water in the barrel can cause damage.
It’s great that you ran the test with the cover open and then closed. Unbiased, fair testing. Great work! I wonder if Sig will make rolling changes in production, and claim that it always worked with water?
Doubht it, They 110% all ready know.
Their name sells their guns....colt anyone?
I’m actually really impressed with that performance. Thanks for the fun gauntlet tests vids!
I would like to propose an extra test of shaking the MPX vigorously after being submerged before firing. Can the hydro lock be cleared with only one shake? Two shakes? A full second of vehement swinging?
Would also like to see this.
I was thinking the same thing
No more than 2 shakes or you're playing with it.
@@bmstylee tehehehehe
I didn't think of it but good question. Have a Gen 2, 8" barrel version. If ya shake it more than twice tho..... Anybody know why SIG abandoned that model? Add a brace and slimmer handguard and better trigger and it serves it's purpose well. Guess now I know why it came with that little 8" umbrella and a huge Ziploc bag. L8r.
Man I had NO IDEA that water could block gas/air from moving through a piston system! Thank God for the ‘EL Gauntlet’ test to explain physics to us! Now we can act all surprised that water stopped the gas from entering the gas block which then doesn’t allow the piston to cycle. Lol hell I’m glad that MAC, and everyone else, got Sig to tighten up their QC and this version MPX ACTUALLY works to begin with!!
A single spoon full of water stopped it up, that is surprising. I've actually never seen a piston gun fail due to being submerged.
@@hwi7114 yeah because the gas ports on the top of the barrel of most guns so it would drain out before he shot it. This one has something that’s allowing the water to keep it blocked.
The water is robbing the volume of gas! Interesting 🧐
Mine worked flawlessly when I tried this same test (fully submerged in water till bubbles came out) I was a little worried about it after watching this so I tried it myself... I used sig elite performance 9mm hollow points during my experiment also a well broken in mag! I honestly am at a loss for words, but I’ve heard some weird stories about the sig mpx in the past. Maybe some quality assurance issues going on or luck of the draw lol
Tim i just had a random thought while watching this video. I remember telling my fellow firearm enthusiasts about you when I was a sophomore in high school. That was almost 10 years now!
Honestly, this Gauntlet series is my favorite set that you produce. Semi-scientific and interesting.
Just order the SIG micro umbrella and patent pending huge SIG Ziploc bag. Just found a backpack that my Gen 2, 8" barrel fits in without printing and now I gotta find a dang water proof one but thank goodness you found that weak spot. Hey, could attach one of those cans of air to it to blow out the gas tube if your do SEAL type missions or cant afford a poncho. My MPX is givin me THAT look. L8r.
From what I remember it was a bad idea to submerge an M60 in water as well. When the gas piston got wet it became a single shot until you pulled out the piston and dried it off.
i like to keep a Benelli M4 and BCM Recce 11 staged in the shallow end of the pool while swimming during summer months. i was going to add this MCX at the deep end, but now I have to rethink this plan entirely. i will also be asking for an umbrella for christmas. thx for the excellent video.
At least I know the tear that rolls off my cheek from watching the scorpion fail will stop the sig. makes me feel little better 🤣🤣
2 for 2 of Tim dunking on my two favorite PCCs...
Oh well, still love the Scorpion and MPX.
In the Army we are told to aim down and pull back in the charging handle part way to break a seal created by the water.
Now we know how to counter mpx, just use water guns 🤣.
This is in the top 5 of ALL RUclips gun channels
OTB, haven’t heard that in 4 years, also, great test, thanks for the extended clarifying tests at the end.
Call Sig and see if they’ll start including a condom in the box with the MPX!
Two if you get deployed to China!
@@lancekilkenny3801 And a laptop...
They know their owners will buy any shit they put out, they take it in the ass raw dog, time after time. Sig owners shit pancakes.
Now THAT is a great catch for Tim.
The MPX among competition shooters has a notorious reputation for being a picky gas system. Which makes sense because it's a locked breach gun operating a short stroke piston only with pistol pressures in the gas. Must be very tricky to tune. Adding water is probably screwing the gas expansion up so it doesn't have enough force to push the piston back.
"I don't know where you'd find yourself in a submerged situation where youd immediately have to bring your weapon up and use it." Mac obviously hasn't seen the movie Crawl 🐊
Awesome job on finding out the water problem!
That intro music in the most feel-good tune since the Unsolved Mysteries theme song. Just, damn. Sped up to 1.25x, it's a whole lot more tolerable.
Its those tight tolerances that cause it to fail the water test. The water gets in but doesn't drain quickly and then the hydraulic pressures keep it from functioning. Probably if you gave it a coupla good shakes as you brought it out to break the vacuum so it can drain, it would probably work just fine.
Navy SEALS immediately cancel their order for MPX’s 🤣.
Don't worry Sig will make a "Navy" edition for $1,000 more!
This is why guns have a MAC clause in their warranty riders.
The Bruce Willis of guns....
😂😂😂
LMAO 😂😂😂😂
Yup. It is almost Unbreakable.
@@Snapper314 definitely not made of glass.... 🤓
@@Snapper314 maybe he should shoot it and see if it hurts it. Maybe simulate a train crash, aslong as it has a rain coat though it should be fine.
I’ve owned mine a year now and runs great. So far... All though it never occurred to me to soak it... very interesting..👍🏼👍🏼 good to know
Man, if this was a side charger it would absolutely be top of the list for me.
Really interesting results Tim, thanks for sharing. Would love to see how the Ruger PC Charger deals with the elements.
I have a feeling it's from how short this version is. Its originally designed as a longer PCC with more length on the barrel. They probably initially tested the original and thought it was fine then chopped it down for the shorty and boom there you go. The longer version probably still has water issues, just less prevalent.
The dwell time would slightly increase, but the gas system itself is the same on all MPX barrels. I don't think the slightly increased dwell time would be enough to overcome the water in the piston tube. The water won't compress, so the gas will just take the path of least resistance and exit the barrel without cycling the action. The only hope is that the 16" barrel would have enough dwell time that the heat from the gas would evaporate the water in the piston tube, but I doubt that would happen and still have enough time/gas to cycle the bolt.
Well we have a new firearms saying now. Along with "Keep your powder dry" we can add "Keep your MPX dry". Lol. :-)
Great video. I haven’t had any issues with my mpx k....now I know its kryptonite.
I'm curious to if you opened the chamber after submerging and gave it a couple of shakes if that would cure the malfunctions 🤔🤔
ontop of making sure it doesnt get wet, make you do NOT feed it after midnight as well!!
Sold my scorpion and mpx because of these tests. Nothing but B&T for me now
The Timney trigger job I did to mine makes all the difference... anyone who knows the mpx knows the stock trigger is gritty!
That thing needs a beefy vertical grip and a single point sling and itl be a beast.
when tim dropped a teaser about this the other night on hank stranges podcast,this is not what i expected.so,if you fall off your dune buggy with it your ok,but if you fall out of your boat,your screwed.informative and entertaining as usual.
MPX sorry guys I can't boog today because it's raining
🤣🤣🤣
Might be why the Seals haven’t adopted this. Makes you wonder about the problems ahead for other Sig military products. I was a die hard Sig fan before they became all American made (and that hurts to say.). So I guess you could loosen some tolerances and over gas it but then it would wear quicker.
I’d like to see if PWS’s long stroke piston system acts any differently with the water
Wouldn't've made much difference in this video but my opinion is that in the future you should re-run the elements test too with the port cover open becuase you can drop your gun when the port cover is open too.
Totally enjoyed that. I would hope some Sig Engineers just take a look at that, I'd love an MPX. I shot one once at a range demo about 6 years ago!
MAC "If it ain't broken it will be."
Never not once ever had a failure out of my MPX-K, apparently short stroke gas piston system doesn’t like to be filled with water, obviously effecting how it cycles, maybe hydro locking the piston 🤷🏻♂️
Rumor is if you put a Glock sticker on it the thing will work fine
Probably viable in most situations where you don't have to swim with it and keep the barrel pointg upp in a storm (doubht the problem will occur in anything but heavy rain seeing as you need a big ammount of water) so, police aswell i gues, which might be why a coupple of policeforces uses it.
Well it'll function just fine in the rain. Mike, from Garand Thumb proved that in his video.
No muzzle up in rain, should be able to remember that lol
I only get about 33 days of rain a year where I live so I’m not disappointed. 😂
Wow! Thank goodness that my lack of scuba diving won’t impact my MPX. Haters gonna hate. I love my MPX K!
Well, this makes me wonder how the CMMG Banshee would fare. I wanted an MPX, but went with the Banshee because it was cheaper. Without a gas system to boff over the water,...I wonder how the rotary locking system of the Banshee would perform.
Performed allot better than I thought it would
If you are always in situations where you have to fire from being completely submerged, one reevaluate your living situation and two get a different gun.
Also could be water changing the pressures in the piston system
If this was a DI system I bet it would have been flawless.
Can you try it with the water again and add a suppressor? I'm wondering if the added dwell time could overcome the issue.
I have been waiting for this for years. MPX I know you can do it. Good luck.
IMHO from engineering point of view - looks like gas port hole in barrel is too small that causes it to act like capillary holding water in it. So, I suggest that making that gas port hole bigger will fix the problem (but it may cause gun to become over-gassed).
I wonder if charging the weapon allowing it to drain much like an AR would make a difference
If the water is in the gas block, no. The charging handle doesn't move the piston. Assuming the mpx is short stroke
Pretty sure the temperamental gas system is also the reason why sig hasn't been able to get a mpx out in other calibres. I wonder if opening up the gas port and running an adjustable gas system would help with this problem?
This is still clearly the best result so far. At least it cleared everything, fixed itself, didn't need the test to stop, or tools (tree stump) to get it working.
idk man, spoon of water causing two malfunctions seems pretty fatal to me.
@@Shieldsz you have to scoop in barrel. The chance of dropping and landing in water deep enough to submerge the barrel is very slim. The others failed from dirt and sand. Go in your backyard and see how much more dirt is outside than water that would submerge a pcc.
@@RichCiminisCrustyTissue If you think i care to argue with you, you're mistaken. Barrel up, or just heavy wind and rain seems to be enough.
@@Shieldsz I'm just stating facts. You don't hold a pcc facing the sky and only horizontal to engage.
@@RichCiminisCrustyTissue Facts, lmao. You're dictating scenarios now to protect your precious baby, your agenda. Give it a rest i dont care.
Those results were very interesting!
Just for giggles could you try submerging the gun and giving it a quick tap and rack before firing to see if that lets the gas system drain? Given its success with the other elements I wouldn’t hold it against the MPX if a quick remedial action before firing was all it took to eliminate hydrolocking.
i hide all my pcc's in the toilet ready for intruders, so no mpx for me ; (
Great video Tim. I’ve been waiting for this one.
Garand Thumb's intro to his MPX review was done in the rain, and it worked just fine. I don't remember if he said it jammed in the actual review though.
Large difference between being out in the rain and being fully submerged in water for several seconds. Especially with the gas system in this weapon.
The PSA AKV killed it! The only other gun that hates water is the FN509. Great gun, but don't drop it in water
You should do the gauntlet test with rifles. I'd like to see how the ARX does
I think with submersion if you don't need to fire immediately it would drain out but perhaps not
Glock 19x, fnx45, MK23 in the gauntlet would be a dream!
Didn't you have similar issues with the MCX when you did a puddle test? In that video you thought it might have been the recoil spring channels in the receiver, they are pretty small and tight.
Apart from the Hydro-locking, I think the biggest take away is dust covers matter. The shape of both the Scorpion bolt and MPX have cuts and voids, that once filled, may pulled large chucks of dirt or mud into the action and killed the gun. MPX dust cover prevented that. I would like to see dust cover open on the test, just out of curiosity. As if you dropped the weapon while engaged.
not necesarilly if weep hole in tappet hole like a oil gallery in a crank shaft would be rearward travel of short gas stroke ,far behind the port .was thinking more revised tappet thtat had surface area removed like sand cuts to loosen friction there
a kit like marine cups on glocks striker would be nice like a revised fluted tappet so update all with 1 part
Seems odd that such a small amount of water would interfere with the gas system so much. Water is incompressible, so in theory a little water shouldn't interfere with the push of the piston. I wonder if they have some weird geometry around the gas port that allows a couple drops to completely seal off the gas flow to the piston.
You have to do a follow up test with a mpx copperhead and the mpx first gen full size. What about the carbine version? Only then will we truly know the answer Tim!
we should re-name that gun "the reptillian" as it's only weakness is water, same as the reptillians in the movie 'signs'