The HUXWRX Safety Company RAD Piston with an M13.5×1 left-hand thread (brand part no. 1981) is a booster piston for HUXWRX’s RAD suppressor line, cut to the M13.5x1LH thread common on Glock OEM factory-threaded barrels. It lets the barrel move independently of the suppressor’s added mass, which keeps a recoil-operated pistol cycling reliably with a can attached. As a wear item, it can be replaced on its own as internal springs and seals age without buying a whole new suppressor. It ships as a standalone service part, separate from the suppressor tube.

Key Specifications

• Threaded to M13.5×1 left-hand, the common Glock OEM factory-threaded barrel pattern.
• Built as the piston for the RAD suppressor platform, HUXWRX’s pistol-caliber suppressor line.
• Functions as a service part, letting owners replace a worn piston without buying a new suppressor.

Frequently Asked Questions

What thread pattern does this piston use? It’s threaded M13.5×1 left-hand, the common Glock OEM pattern.

What suppressor platform is this for? It’s built for HUXWRX’s RAD suppressor line.

Why would I need a replacement piston? Pistons see wear from repeated cycling and can be replaced independently of the suppressor as they age.

Buy the HUXWRX RAD Piston, M13.5x1LH

Order the RAD Piston, M13.5x1LH from our Lubbock, Texas gun shop for fast, direct shipping. Browse more pistol suppressor parts in our Class 3 parts and accessories category.