M16 .223/5.56 Nickel Boron Bolt Carrier Group (blemished)

Complete Nickel Boron coated BCG including bolt, firing pin, etc. These have small blemishes, primarily machining marks. They are functionally and mechanically perfect.
  • Nickel Boron coated -40% more wear resistant than chrome plating, with an ultra-low friction coefficient.
  • Bolt – carpenter 158 steel, case hardened, shot peened, magnetic particle inspected.
  • Extractor – includes black buffer, black o-ring, and spring.
  • Gas Key – properly staked grade 8 heat treated fasteners
  • Carrier – 8620 steel, heat treated, and case hardened.
  • Full-Auto Cut (Non-NFA Item) - LEGAL ALL 50 STATES
  • Semi-Auto or Full Auto Compatibility
  • Colt M16 Firing Pin


These units have small cosmetic blemishes, primarily machining marks. None of them affect the functionality of the bolt carrier groups.

We've included pictures of some of the worst ones we could find to give you the idea of what they are like.

Allow 3-7  days for shipping


Current rating is 3.94. Total votes 34.
Picture of .223 NiB blemished bolt carrier group
.223 NiB blemished bolt carrier group
Availability: 6 in stock

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