BRT M4A1 Bolt Carrier Group – 5.56/.223

$160.55

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SKU: BCG-M4A1

Product Description

Black River Tactical M4A1 BCG is a Full Auto Bolt Carrier Group made to current USGI M4A1 specifications.

Features:

  • Full Auto Bolt Carrier Group BCG for the AR Family of Weapons (AR-15, M16, M4)
  • Carpenter 158 bolt is Shot Peened, HP tested and MP inspected.
  • The USGI full auto bolt carrier is Hard Chrome lined inside and Manganese Phosphate coated outside.
  • The Mil-Spec gas key is chrome lined, secured with mil drawing heavy splined fasteners and properly staked to ensure reliable gas system performance.
  • Bolt is marked “MP”. Carrier is marked “BRT” with Logo on the ejection port side.
  • 100% made in USA to current USGI M4A1 specifications.

Specifications

Technical Information

Caliber

5.56 NATO / .223 Remington

Firearm Compatibility

Material

Carpenter 158

Finish

Manganese Phosphate

Catalog Location

California Prop 65 Warning

WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information visit www.P65Warnings.ca.gov

Customer Reviews

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Top notch BCG

Microbest BCG that’s been upgraded a bit by BRT. Excellent quality. Can’t do better.