Milkmaster
Member
Bought a nice used 391 and took it out for a get acquainted session of trap today. Had rounds of 21, 22, 23,& 24 with it. Seems to fit me & fire just fine. Afterwards I disassembled the shotgun for cleaning. Surprisingly part of the gas piston assembly is missing. If you look at the drawing shown it is part #50, the small washer that fits beneath the snap ring. Anyone know the exact size of that small washer? I sure would like to find one that size locally rather than pay more in shipping that the little piece costs. I could order the whole piston assembly for $55 plus about $20 shipping, but only if I fail to find a small washer that works. Anyone having the exact size of that small washer is appreciated.
