I have a similar set up. Function greatly improved after I replaced the HK recoil spring with some random AK recoil spring I had laying around. So far a couple thousand rounds through it. Also the shell case has a magnetic base so easy peasy to pick up.
I have a similar set up. Function greatly improved after I replaced the HK recoil spring with some random AK recoil spring I had laying around. So far a couple thousand rounds through it. Also the shell case has a magnetic base so easy peasy to pick up.
Poke poke poke poke poke poke POP!