Piston, 1/2"x 28 RH, Osprey/Octane, Designed to be used on Glock 43,
M&P Shield, Sig 938, and others with a soft shoulder.
pistons were designed to be easily changed for different host firearms
or calibers. Pistons are built with 17-4 stainless steel, then
heat-treated for maximum durability. The piston is part of the Nielson
device that moves and allows semi-automatic cycling for unlocking pistol
barrels. Throw a Fixed Barrel Spacer on for fixed barrel applications.
SilencerCo pistons have female threading that attaches to our SilencerCo