© Vizards Guns and AmmoRosco Manufacturing Bolt Carrier Group, 556NATO/300 Blackout, Fits AR-15, Melonite Finish, Black ROS-BCG-001
- Brand
- ROSCO MANUFACTURING
- Color
- Black
- Category
- Gun Parts
- Gun Part Type
- Bolt/BCG
- UPC
- 181969500821
Overview
The Rosco Manufacturing Bolt Carrier Group (ROS-BCG-001) is designed for 5.56 NATO and .300 Blackout AR-15 platforms. Featuring a durable black Melonite finish, this full-auto rated BCG includes an 8620 steel carrier and a properly staked gas key attached with Grade 8 hardware. The assembly features a matched 9310 steel bolt that is shot-peened and MPI/HPT tested for precision lockup. The firing pin is constructed from 8740 steel with a hard chrome coating, while the cam pin is hardened 4340 steel, the extractor is 4340 steel, and the ejector is S7 tool steel.
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