SACair Forum

How do I take out the Piston in a USP?

Feb 15, 2008 10:39pm
Topic.
"No one ever won a war by dying for their country, they won by making the other son-of-a-bitch die for his"-Gen. George Patton
Feb 15, 2008 10:42pm
More information is required.
Feb 15, 2008 11:11pm
Ok, I'm having problems with the inner piston, and I think I have a bad spring. I'm not sure how to remove it, I've tried taking out the Breach but after I get the Allen screw out, the thing still doesn't come off. Sorry for asking this noob question, but I have never taken apart a GBB internally before and I need to fix this, so can you help me?
"No one ever won a war by dying for their country, they won by making the other son-of-a-bitch die for his"-Gen. George Patton
Feb 16, 2008 12:24am
perhaps a brand would be good...you know...its a good start...
Feb 16, 2008 1:38am
Oh sorry, KWA USP Standard.
"No one ever won a war by dying for their country, they won by making the other son-of-a-bitch die for his"-Gen. George Patton
Feb 16, 2008 7:58am
KWA/KSC blowback units are usually held in place by both the screw through the rear of the unit as well as the legs which are pressure fit into cut outs in the slide. You need to wedge them in towards the unit itself, so the tabs can clear the cut outs/rails in the slide.
Feb 20, 2008 12:08am
Ok, thanks.
"No one ever won a war by dying for their country, they won by making the other son-of-a-bitch die for his"-Gen. George Patton