SilencerCo Piston 5/8×24 | 30 Cal | Osprey/Octane

This SilencerCo replacement piston provides the female thread interface for Osprey and Octane suppressors and is designed to enable proper function with compatible host firearms and subcaliber setups. It is manufactured from 17-4 stainless steel and heat treated for serviceable durability under repeated cycling. The piston is an integral part of the Nielsen device that permits semi-automatic cycling and isolates the suppressor from direct barrel contact.

Product Specifications

• The thread pattern is 5/8×24.
• The piston is specified for 30 Cal applications per manufacturer details.
• The material is 17-4 stainless steel and is heat treated for durability.
• The finish is listed as stainless.
• The piston is designed to fit Osprey/Octane series suppressors.
• The product weight is approximately 0.1 lb.
• The overall length is listed as 2.1 inches.
• The product width is listed as 0.9 inches.
• The product height is listed as 0.9 inches.
• The package length is listed as 6.5 inches.
• The NFA thread pattern is 5/8×24.
• The piston is intended for use with models including Osprey Series and Octane Series.
• An additional feature listed is 300 AAC Blackout Subsonic compatibility when used with appropriate components.
• The series designation is Piston 5/8×24.
• The product UPC is 817272010206.

This piston allows owners to change host interfaces quickly to support different firearms or subcaliber use without replacing the entire suppressor. It is suited for range work, caliber conversion setups, and competition configurations where fast serviceability and consistent thread fitment matter. Built from heat-treated 17-4 stainless, it prioritizes dimensional stability and longevity under repeated cycling.