This is a replacement piston for SilencerCo tubular pistol suppressors, threaded M16x1 right-hand. On a recoil-operated pistol, the suppressor cannot simply hang rigidly off the barrel, because the added mass would prevent the slide from cycling. The piston and booster assembly solve that by letting the can move independently against a spring, giving the barrel the momentum it needs to unlock. Matching the piston thread to your specific host barrel is what makes the whole system work, and having the correct piston is essential whenever you move a suppressor between pistols with different thread pitches. Heat-treated steel construction.

In stock and ready to ship straight to your door from Dawson Defense, an Arizona-owned licensed dealer.