Description
Description
The Microbest Bolt Carrier Group is a great choice for any build. This drop-in AR-15 BCG features a corrosion resistant salt bath nitride finish, MIL-SPEC dimensions, and a magnetic particle inspected carpenter 158 steel bolt. Crafted from domestically sourced 8620 steel, the M16 cut carrier includes a gas key fastened by properly staked grade 8 screws. Made in the U.S.A. and covered by a lifetime warranty, you can count on this BCG for a lifetime of service.
Features:
- .233/5.56 NATO
- Salt bath nitride finish
- M16 cut
- Aircraft quality 8620 steel carrier
- 4130 steel gas key
- Properly staked grade 8 gas key screws
- Carpenter 158 steel bolt
- 4140 steel extractor
- MIL-SPEC O-ring
- MIL-SPEC gas rings
- 4140 steel cam pin
- 8740 steel firing pin with hard chrome finish
- Magnetic particle inspected
- Lifetime warranty
- Proudly made in the U.S.A.
Weight 15 oz MPN Bolt Material
Carpenter 158 Steel
Cartridge Compatibility
.223/5.56 NATO/.300 BLK
Finish
Salt Bath Nitride
Carrier Profile
M16
High Pressure Tested
Individually HP Tested
Magnetic Particle Inspected
Magnetic Partical Inspected
Platform
AR-15
Bolt Finish
Salt Bath Nitride
SKU: 14701
