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Dirty Bird AR-15 5.56/.223/300BLK Bolt Carrier Group - Polished Nickel Boron - D112

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MSRP: $159.95
$143.95

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SKU: D112 Categories: ,
Description

The Dirty Bird Industries Nickel Boron Bolt Carrier Group is a substantial upgrade from a standard BGC. Its NiB coating reduces friction on sliding surfaces and prevents carbon build-up making cleaning a much easier task. The NiB coating offers great heat dissipation, allowing reduced wear on the BCG and interacting parts, to further prolong the lifespan of the unit. MIL-SPEC dimensions ensure correct component function and reliability.

Features:

  • Machined from 8620 tool steel (carrier) and 9310 carpenter steel (bolt)
  • Forward assist serrations
  • Shrouded firing pin
  • Nickel boron coating inside and out (bolt, carrier, and gas key)
  • Forged MIL-SPEC gas key attached with grade 8 hardware and properly staked.
  • 5.56 NATO bolt is shot peened and magnetic particle inspected
  • MIL-SPEC extractor spring, black extractor insert, Viton O-ring
  • Tool steel extractor
  • Weight 11.52 oz

100% MADE IN THE USA

Backed by the Dirty Bird Industries Lifetime Warranty

Additional information
Weight 11.84 oz
MPN

D112
Bolt Material

8620 Steel, 9310 Steel, Carpenter 158, Carpenter 158 Steel, Stainless Steel
Cartridge Compatibility

.223/5.56 NATO/.300 BLK
Finish

Blue PVD, Chameleon PVD, Chrome, DLC, Ion Bond FDE, Lithium Isonite, Mag Phosphate, Nano Diamond Nickel, Nanoweapon, Nanoweapon Chrome Nitride, Nickel Boron, NP3, TiN, Salt Bath Nitride, Stainless Steel
Carrier Profile

Enhanced, Lightweight, M16, Other, Semi
High Pressure Tested

HP Tested, Individually HP Tested, Untested
Magnetic Particle Inspected

Magnetic Partical Inspected, None
Platform

AR-10 / LR-308, AR-15
Bolt Finish

Blue PVD, Chameleon PVD, Chrome, DLC, Ion Bond FDE, Lithium Isonite, Mag Phosphate, Nano Diamond Nickel, Nanoweapon, Nanoweapon Chrome Nitride, Nickel Boron, NP3, Salt Bath Nitride, Stainless Steel, TiN
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