Enhanced Bolt Carrier Group for 5.56mm/.223 and 300 BLK
- Mil-Spec 8470 Steel Firing Pin
- Hardened 4340 Cam Pin
- Black Nitride Finish
- Optimized Forward Ports
- MPI & HPT Tested
- Mil-Spec Extractor Spring & O-Ring
The SilencerCo Enhanced Bolt Carrier Group is designed for shooters who demand superior performing weapon components in their firearm.
Carrier Assembly – The flared rear of the enhanced bolt carrier group is designed to reduce carrier tilt/cant during recoil and increase reliability by relocating key bearing surfaces. The enhanced BCG has fewer points of contact resulting in less friction area. The increase in mass ensures proper pressures and increases dwell time, thus improving extraction while shooting suppressed or short-barreled rifles (SBRs). The carrier is made from Case-hardened 8620 steel.
Bolt Assembly – The bolt is true mil-spec dimension and external surfaces are are CNC ground after heat treat for precision fit. These bolts are held to the highest tolerance. The “trumpet” area behind the gas rings, where carbon normally collects, is precision machined after heat treatment to ensure as smooth of an area as possible, easing clean up and ensuring longevity. The bolt is made from 9310 Case Hardened Steel and the bolt components are Shot Peened and coated in Black Nitride.