The Midwest Industries AR-15 Bolt Carrier Group is built from premium materials with state-of-the-art processes and comes with a limited lifetime warranty from Midwest Industries. This AR-15 BCG features a 5.56 bolt made from carpenter 158 steel that is heat treated, shot peened, and precision ground for perfect final dimensions. The carrier itself is made from 8620 steel and is properly heat treated before the final plating process. The Gas key is machined from a billet of 4140 steel and fastened with grade 8 screws and staked for reliability. The extractor is also machined from 4140 bar stock and is shot peened and Manganese Phosphate coated for durability. Every other component is finished in an H&M black Nitride coating for improved durability, wear and corrosion resistance, and lubricity for a smooth running rifle. 100% made in the U.S.A., you can’t go wrong with a Midwest Industries Bolt Carrier Group.
- 5.56 NATO bolt
- Carpenter 158 steel
- Shot Peened
- Magnetic particle inspected
- 8620 steel carrier
- 4140 steel gas key, cam pin, and extractor
- Grade 8 staked screws
- Phosphate coated and shot peened extractor
- 17-4 H-900 stainless steel firing pin
- H&M black Nitride finish
- M16 Pattern
- 100% American made
- Limited lifetime warranty
Midwest Industries is a quality manufacturer of tactical weapons accessories. They produce handguards, rails, and iron sights for many of the most popular weapon platforms like the AR-15, .308, Sig MCX, AK-47, and many more. Their goal is to manufacture the highest quality parts at affordable prices backed by a lifetime guarantee.