Since its for a pistol Im gonna use a stock commie piston.The shortest one Ive made that works so far is Slamfire51 s barrel and piston that piston was 2 3/8" long. Dont know yet if this one will hang up on the rear site block or not I may have to start with a really small gas port and work up. Im not even sure if there will be long enough stroke to work but wont know till I try.
The top pic is after I heated and pressed a socket extention inside to iron out the flutes so the piston wont hang on the back. The middle is before .This thing is so damn cute if it dont work I may have to make an earring out of it.LOL :hippy:
Wait till my piston for it comes from Hotbarrel.Hes making me a little bugger.I just got a barrel from a guy in the mail today off of a Saiga. It got bent so I got it dirt cheap. Im gonna cut it off to about 7 3/4". That should leave me about 5/8" to thread for a muzzle device.It appears that Im gonna half to recontour the carrier so it dont hang up in the tube.