Airsoft Canada - View Single Post - [CM048S] Piston head bearings stuck, piston not travelling, cylinder head/nozzle questions (Spring issue fixed)

pestobanana · July 22nd, 2015, 09:06

The issue may be that the spring is too long. CYMA gearboxes have a gigantic washer inside the piston which raises the FPS. That's why CYMA AKs usually get 350 on a SHS M90 and 400 on a SHS M100.

July 22nd, 2015, 09:06	#2
pestobanana Squid Porn Superstar, I love the tentacles! Trader rating Join Date: Nov 2008 Location: Richmond Hill and Waterloo, Ontario	The issue may be that the spring is too long. CYMA gearboxes have a gigantic washer inside the piston which raises the FPS. That's why CYMA AKs usually get 350 on a SHS M90 and 400 on a SHS M100.