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Microbest C158 HPT/MPI 5.56 Bolt Carrier Group - Black Nitride

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MSRP: $134.95
$89.95

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SKU: 14701 Categories: , , ,
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.
Additional information
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
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