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gas efficent semi bolt

Posted: Mon Feb 05, 2007 4:00 pm
by iknowmy3tables
I thought of this bolt system, I don't know if I've seen something similar, but can't find now. but hear is a gas acuated auto loading mechanism, its to reduce the displaced gas that often in blow-forward bolt systems, their are other ways to mod the bolt but they often can restrict air flow, and are hard to make in small bolts

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the air from the chammber goes into the piston pushed the bolt forward, then dumps when the gun is fired. also the reason I have a needle valve is for a very fast refil two stage chammber design, like my getto multi shot spud rifle