SilencerCo 17-4 Stainless Suppressor Piston, M13.5x1 Left-Hand XL Threads, Multi-Caliber AC626

Product Description

The SilencerCo AC626 piston is a heat-treated 17-4 stainless steel piston designed for multi-caliber handgun suppressor setups where a Nielsen device (booster) is used for reliable semi-automatic cycling. Built for easy interchangeability, it allows you to swap pistons to match different host firearms or thread patterns, helping you use the same suppressor across multiple compatible hosts. This XL-length piston features M13.5x1 left-hand (LH) threads to provide additional clearance/length where required between the threaded barrel and the suppressor, and it is compatible with the Octane, Osprey, Omega K, and Hybrid 46 series.

Product Highlights

• Heat-treated 17-4 stainless steel construction for durability in suppressed pistol use
• M13.5x1 left-hand XL thread pattern for hosts that require additional piston length
• Designed to be quickly interchangeable to support different host firearms and calibers
• Part of the Nielsen device/booster system that helps enable semi-auto cycling on tilt-barrel pistols
• Compatible with SilencerCo Octane, Osprey, Omega K, and Hybrid 46 suppressor series

Specs

• Brand: SilencerCo
• Manufacturer Part Number: AC626
• UPC: 817272011623
• Product Type: Suppressor piston (Nielsen device/booster piston)
• Material: 17-4 stainless steel
• Heat Treated: Yes
• Thread Pattern: M13.5x1 left-hand (LH), XL length
• Application: Multi-caliber handguns
• Compatibility: SilencerCo Octane Series; Osprey Series; Omega K Series; Hybrid 46

Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product’s manufacturer.