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 finish 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!
Since 2015, Arm or Ally has handled hundreds of thousands of bolt carrier groups and was the leading dealer of the Toolcraft BCG. Trust us, when we say "we know bolt carrier groups"! We have chosen specific manufacturers for each component of our BCG due to their high-quality parts, and attention to detail. For this particular BCG, we leave off the fancy logos and packaging and deliver you a best-in-class BCG for a very attractive price.
|Extractor||4140 Billet Steel, O-Ring, Phosphate|
|Cam Pin||8620 Steel|
|Firing Pin||17-4-H-900 Stainless Steel|
|Other||MPI, Shot Peened, Heat Treated|
|Gas Key||4140 Billet Steel; Grade 8 Fastners|
|Finish||Precision Ground; Black Nitride+|
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, high-end 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.
|Manufacturer||Leading U.S. Manufacturer|
|100% American Made||Yes|
|Caliber||5.56 NATO | 223 Rem|
|Compatability||Works with standard Milspec AR15 components|