Description

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M16 / AR15 5.56 NATO Bolt Carrier Group - Black Nitride

100% Made in America

Arm or Ally M16 / AR15 Bolt Carrier groups in 5.56 NATO are precision ground, properly heat treated, full-Auto M16 BCG, manufactured using the finest U.S sourced raw materials available. The Black Nitride coating vastly increases the hardness of the steel, prevents corrosion, is highly resistant to wear, will not flake (it's not a coating, it's a bond), and has increased lubricity when compared to a phosphate finished BCG.  The Bolt Carrier Group is the heart of your rifle, and if you want to upgrade the reliability and functionality of your rifle, this is a great part to replace way to do it!
Arm or Ally knows AR15 Bolt Carrier Groups, and would only put our name on the best-in-class! Forget the fancy logo at a $75 premium; Have confidence the heart of your AR Rifle is 100% made in the USA.
Bolt Specs
Material 9310 Steel
Extractor 4140 Billet Steel, O-Ring, Phosphate
Cam Pin 8620 Steel
Firing Pin 17-4-H-900 Stainless Steel
Finish Black Nitride+
Other MPI, Shot Peened, Heat Treated
Carrier Specs
Material 8620 Steel
Type M16 Full-Auto
Gas Key 4140 Billet Steel; Grade 8 Fastners
Finish Precision Ground; Black Nitride+
Other Heat Treated
What is the Arm or Ally Brand?
Our "Arm or Ally" branded products are manufactured in the same facilities and to the same standards as many well-known household AR brands.  Our promise to you is a high-quality product at a more affordable price. 100% American made products, backed by the same defect-free warranty as every other product we offer.
Product Information
SKU AOA100615C
Manufacturer Leading U.S. Manufacturer
100% American Made Yes
Caliber 5.56 NATO | 223 Rem
Finish Black Nitride
Platform AR15
Compatability Works with standard Milspec AR15 components
Weight 12oz
Arm or Ally is a stocking dealer for all Faxon Firearms, Ballistic Advantage, HOLOSUN, Toolcraft, Elftmann Tactical, Timney, CMC Triggers, HIPERFIRE and named the #1 Overall E-Commerce Dealer for Aero Precision Products in 2020!  See our growing inventory of AR Parts, and Reloading Components.