California Proposition 65 Warning
This product can expose you to chemicals including lead, known to cause cancer and birth defects. For more info visit P65Warnings.ca.gov.
SilencerCo
Piston
$89.00
$75.65
Sale Price
Available
SilencerCo Piston, M16X1 LH, Fits Osprey/Octane AC28
Key Details
Brand
SilencerCo
Manufacturer Part Number
AC28
UPC
817272010183
SKU
SCOAC28
Current Stock
144 available
Quantity Updated
Jun 24, 2026 2:43 PM
Already have an account from an in-store purchase? Log in to use that profile for checkout and future orders.
Continue Shopping
Purchase Requirements
- Final availability is confirmed at checkout.
In-Store Pickup Required: All firearm purchases must be picked up at our Beverly Hills location after background check completion.
Product Description
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.
Features
- Compatible with Omega K Series, Hybrid 46, Osprey Series, Octane Series
- Compatible with Hybrid 46M and Omega 36M with Charlie Piston Mount
- 17-4 Stainless Steel Construction
- Heat Treated
Specifications
UPC:
817272010183
Manufacturer:
SilencerCo
Manufacturer Part #:
AC28
Model:
Piston
Type:
Piston
