Rugged Suppressors | Obsidian Piston

Rugged Obsidian pistons use a non‑slotted design for a full‑circumference gas seal and lower gas blowback. Machined from 17‑4 stainless steel and heat treated. Generally used with a booster system on handguns. On a fixed‑barrel carbine or subgun, replace the spring with a Fixed Barrel Spacer. Threaded 1/2‑28. The 1/2‑28 internal‑shoulder piston is for the Sig P938, Sig P320, and Glock 43. Rugged item OP002.