WMD NICKEL BORON COMPLETE M16 BOLT CARRIER GROUP 5.56 & 300 BLK
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If purchasing a BCG with a barreled upper, we recommend the following:
M16 Profile BCG for all Pistol / SBR uppers and 16" barrels with a carbine
gas system. AR15 Profile BCG for 16" barrels with a mid-length gas system,
18", 20" and 24" barrels. These are general recommendations. Please call us
with any questions or concerns before you place your order.
Thank You, MAS Defense.

WMD Guns drop-In M16/AR-15 Bolt and Carrier Assembly/Group (BCG) is developed to
increase reliability and ease of cleaning and maintaining your M16/AR-15 type rifles. Does
not include the hammer.

Bolt – Carpenter 158 case hardened, shot peened and MPI Tested. NiB-X Coated.
Extractor: Heat treated, hardened and NiB-X coated.
Firing Pin: Heat treated, hardened and Chromed.
Carrier: M16 Profile. 8620 material. Heat treated and case hardened. NiB-X coated.
Gas Key: Hardened. Grade 8 hardened fasteners. Properly staked. NiB-X coated.
Cam pin: Heat treated and hardened. NiB-X Coated.

WMD applies specialized coatings to firearm parts improving reliability, guarding against wear,
moisture, and corrosion, simplifying cleaning and maintenance, and extending service life.
  • Item #: NIBXBCG-0001
  • Condition: New

WMD NICKEL BORON COMPLETE M16 BOLT CARRIER GROUP 5.56 & 300 BLK

Price: $169.99
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