Alpha Premium Nitride 5.56 Bolt Carrier Group

Specifications:

  • Carrier: Machined from 8620 steel  & QPQ nitride/melonite treated.
  • Improved carrier geometry with M16 profile.
  • The QPQ nitride/melonite treatment hardends the surface to 70 RC and reduces friction as well as adding corrosion resistance inside and out.
  • Bolt: 9310 & QPQ nitride/melonite treated with additional cryo freeze for extra strength.  Shot peened precision ground diameters.
  • Magnetic particle inspected and laser marked.
  • Extractors: Aircraft quality alloy steel shot peened with crane extractor O'ring installed.
  • Gas key: Machined from billet 4140 with grade fasteners and staked to mil spec.
  • Chrome plated firing pin per mil spec.

 


 

 

  • Item #: MELBCGP

Alpha Premium Nitride 5.56 Bolt Carrier Group

Price: $129.95
* Marked fields are required.
Availability: In-Stock
Qty: *