SilencerCo Piston 13.5×1 LH XL, 17-4 Stainless

Description

The SilencerCo AC626 piston (M13.5×1 LH XL) is a threaded replacement piston engineered for use with compatible SilencerCo suppressor families. Constructed from 17-4 stainless steel and heat treated, it provides a durable, serviceable interface between a suppressor and host muzzle. The piston forms the female-threaded connection and is part of the Nielsen device, which moves to allow semi-automatic cycling on compatible pistols. It is intended to be swapped to adapt a suppressor to different host firearms or sub-caliber configurations.

Key Specifications

• Thread pattern is 13.5×1 LHM XL.
• Material is 17-4 stainless steel and heat treated for durability.
• Finish is Stainless.
• Product type is Multi-Caliber.
• Size is XL.
• Function is part of the Nielsen device that enables semi-automatic cycling for unlocking pistol barrels.
• Compatibility includes Omega K Series; Hybrid 46; Hybrid 46M (with Charlie Piston Mount); Osprey Series; Octane Series; Omega 36M (with Charlie Piston Mount).
• Connection uses the piston’s female threads to attach to SilencerCo threaded barrels.

For shooters maintaining a multi-caliber suppressor setup or switching hosts, the AC626 piston offers a straightforward, durable solution. Its serviceable design and stainless construction make it a practical choice for reducing downtime when reconfiguring a suppressor across compatible platforms.