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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.
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Specifications |
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Brand | Microbest | ||
Category | Bolts, Carriers & BCGs | ||
Weight | 15 oz | ||
Finish | Nitride / Melonite | ||
Magnetic Particle Inspected | Magnetic Partical Inspected | ||
Bolt Material | Carpenter 158 Steel | ||
Carrier Profile | M16 | ||
Platform | AR-15 | ||
Cartridge Compatibility | .223/5.56 NATO/.300 BLK | ||
High Pressure Tested | Individually HP Tested | ||
Bolt Finish | Nitride / Melonite |