SilencerCo Piston 5/8×24 for Osprey/Octane

This Silencer Co piston is a replacement Nielsen-style piston designed for the Osprey and Octane family of suppressors. It uses a female 5/8×24 thread pattern to attach to a compatible host barrel and is machined from 17-4 stainless steel with heat treatment for enhanced durability. The piston forms the threaded interface to the host muzzle and is part of the Nielsen device that moves to allow semi-automatic cycling on applicable firearms. Piston swaps expand compatibility across host weapons and subcalibers when used with the correct pistons and spacers.

Compatible with a range of SilencerCo products, this piston is intended for users who need a serviceable threaded interface and the flexibility to configure a suppressor for different hosts.

Key Specifications

• The thread pattern is 5/8×24.
• Constructed from 17-4 stainless steel.
• Heat treated for maximum durability.
• Designed to fit Osprey and Octane series suppressors.
• Features female threads to attach to the host muzzle.
• Serves as part of the Nielsen device to enable semi-automatic cycling where applicable.
• Interchangeable to support multi-caliber configurations with compatible pistons and spacers.
• The finish is stainless.

Built to the specifications expected for SilencerCo service parts, this piston gives owners of Osprey and Octane suppressors a durable, field-serviceable interface for threaded barrels. It simplifies host changes and supports adaptable configurations when used with the correct complementary parts, making it a practical addition for users who maintain or customize their suppressor setups.