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 M13.5x1 LH. Rugged item OP004.