Sons of Liberty Gun Works 5.56 M16 / AR-15 BCG

If you're building a duty rifle or upgrading for dependable performance, this drop-in mil-spec assembly is built to run when it matters.

Key Features

M16-Profile / Full-Auto Capable Carrier (8620 Alloy)
Carpenter 158 Bolt, Shot-Peened
HPT & MPI Inspected
Manganese Phosphate Finish
Hard Chrome-Plated Firing Pin
Staked 4130 Chromoly Gas Key
Super Safety Compatible Geometry
Built for Long Service Life

Specifications

Carrier: 8620 Alloy, M16 / Full-Auto Profile
Bolt: Carpenter 158, Shot-Peened
Extractor: 4340 Tool Steel
Ejector: S7 Tool Steel
Cam Pin: 4340 Chromoly
Firing Pin: 8640 Steel, Chrome Plated
Gas Key: 4130 Chromoly, Staked
Finish: Manganese Phosphate
Testing: HPT / MPI

Why Choose the Sons of Liberty Gun Works 5.56 M16 / AR-15 BCG?

The Sons of Liberty Gun Works 5.56 M16 / AR-15 BCG delivers proven durability, correct M16 carrier geometry, and full inspection standards. It’s built for shooters who demand reliability under hard use and need proper compatibility with Super Safety systems. When performance and longevity matter, this BCG provides the foundation your rifle needs.