Airsoft Canada - View Single Post - Tanio Koba / KJW M4 GBBR Basic Information and FAQ

Rookie Ab · May 7th, 2010, 08:01

Yes,you need a new one.I would think that all your gas pressure is slipping past and the bolt is not cycling proper.

You could order the Cradle oring piston instead of a stock replacement piston ring.

Is your return belt damaged or stretched? part#26 I'm just wondering how that would happen to the piston ring unless it was being pulled back too far(all the way out) of the cylinder.Then catching the edge of the cylinder as it goes forward.I'm pretty sure that is what the belt is for to keep that piston from pulling all the way out of the cylinder. (my 2 cents)

May 7th, 2010, 08:01	#89
Rookie Ab a.k.a. Kody_1 Trader rating Join Date: Apr 2007 Location: 51° 2′ 42″ N, 114° 3′ 26″ W	Yes,you need a new one.I would think that all your gas pressure is slipping past and the bolt is not cycling proper. You could order the Cradle oring piston instead of a stock replacement piston ring. Is your return belt damaged or stretched? part#26 I'm just wondering how that would happen to the piston ring unless it was being pulled back too far(all the way out) of the cylinder.Then catching the edge of the cylinder as it goes forward.I'm pretty sure that is what the belt is for to keep that piston from pulling all the way out of the cylinder. (my 2 cents) __________________ AKA : Rookie, on a few other boards.