Airsoft Diaries 4: G&G GS550 #1 - Overview

Hi guys,
Mr. M.D. has lent us his G&G SIG GS550 for tuning. Thanks to this we can try to cover the whole process. Hopefully we do well! Here's an overview of the A.E.G.!
G&G GS550 Tuning Response Progress
• Airsoft Diaries 9: On...
Web Articles:
GS550 Gearbox Locator Screws Issue - htwarrior.com/...
Piston Upgrade for GS550 - htwarrior.com/...
Update Electronics on GS550 - htwarrior.com/...
Response upgrade overview for GS550 - htwarrior.com/...
For more resources and articles visit our website at htwarrior.com
Cheers!