-11%
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
Overview
Brand |
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Technical Information
Caliber |
5.56 NATO / .223 Remington |
---|---|
Firearm Compatibility | |
Material |
Carpenter 158 |
Finish |
Manganese Phosphate |
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