Description

SilencerCo Piston – · 1/2 x 28 SN (AC1756)

SilencerCo Pistons are designed for quick, easy swaps between different host firearms and calibers, so your suppressor setup adapts to you instead of the other way around. Each piston is machined from 17-4 stainless steel and heat-treated for maximum durability, built to hold up to the repeated cycling and pressure of semi-auto operation.

The piston is the core moving part of the Nielson device — the mechanism that unlocks the barrel and lets semi-automatic pistols cycle reliably while suppressed. Running a fixed-barrel host instead? Swap in a Fixed Barrel Spacer in place of the piston.

Every SilencerCo piston uses female threading built to mate directly with SilencerCo Silencers, giving you a secure, purpose-built connection between firearm and suppressor.

Not sure which thread pitch you need? Check our Piston Fit Guide before you order.

SilencerCo pistons are designed for easy replacement to fit different host firearms or calibers. They are made from 17-4 stainless steel and heat-treated for maximum durability. The piston is part of the Nielson device, which moves to enable semi-automatic cycling and unlock pistol barrels. Use a Fixed Barrel Spacer for fixed barrel setups. SilencerCo pistons feature female threading that connects to SilencerCo threaded barrels.

Compatible With

• Omega K Series
• Hybrid 46
• Hybrid 46M (with Charlie Piston Mount)
• Osprey Series
• Octane Series
• Omega 36M (with Charlie Piston Mount)
• Spectre Series

SilencerCo, Extended Piston, 1/2X28 XL

• 17-4 Stainless Steel Construction
• Heat Treated

Thread Pitch

• 1/2″ x 28 SN (AC1756)

The 1/2×28 SN Piston will index on the muzzle of the barrel instead of the shoulder. This is used on small profile pistol barrels with an inadequate shoulder diameter