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mcguyver · May 20th, 2009, 19:53

I looked at one of these guns today exhibiting this same problem. The nozzle is inconsistant in it's movement, and sort of does it's own thing.

I remember a G&G UMP I looked at about 4 years ago, and the sector gear was shimmed so that it nearly bypassed the tappet. After awhile, it wore a groove in the tappet and totally bypassed it every time.

I would look inside the gearbox. I removed the hop-up from the gun I looked at, and other than the bullshit barrel clip that allowed the inner barrel to freely rotate however the hell it wants, there was no problem with the hop-up. The gun I saw had no spring on the hop-up chamber either.

May 20th, 2009, 19:53	#29
mcguyver Trader rating Join Date: Aug 2005 Location: Northern Alberta	I looked at one of these guns today exhibiting this same problem. The nozzle is inconsistant in it's movement, and sort of does it's own thing. I remember a G&G UMP I looked at about 4 years ago, and the sector gear was shimmed so that it nearly bypassed the tappet. After awhile, it wore a groove in the tappet and totally bypassed it every time. I would look inside the gearbox. I removed the hop-up from the gun I looked at, and other than the bullshit barrel clip that allowed the inner barrel to freely rotate however the hell it wants, there was no problem with the hop-up. The gun I saw had no spring on the hop-up chamber either. __________________ Age verifier Northern Alberta Democracy is two wolves and a sheep discussing what's for dinner. Freedom is the wolves limping away while the sheep reloads. Never confuse freedom with democracy.