This CGS Group piston in .578x28 thread pitch is a direct-thread booster component for CGS suppressors, sized for the common .45-caliber pistol thread pattern found on threaded 1911s, Glock 21 barrels, and similar hosts. A properly matched piston is essential on tilting-barrel pistols, allowing the Nielsen device to cycle the action reliably under the added weight of a silencer. CGS Group has built a strong reputation in the suppressor world for innovative internal designs and quality machining, and their pistons are held to the same standard. Machined and finished in black, it installs easily into compatible CGS booster assemblies.

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