This review covers the TR Enabling AR-15 Bolt Carrier Group (BCG) featuring their 'Obsidian' coating. The Obsidian coating is a nickel-based, Teflon-impregnated finish with a low coefficient of friction (0.06) and high Rockwell hardness (70). It offers advantages like reduced staining and a matte finish, making it ideal for those concerned with signature reduction. The BCG is constructed from 8620 steel for the carrier and Carpenter 158 steel for the bolt, both meeting military specifications. The gas key is one-piece billet steel with good staking, and the bolt is MPI and shot peened. The extractor is billet with a full-auto spring buffer and O-ring for positive ejection. The reviewer recommends lubrication and notes the coating's benefits for suppressed shooting.
This review covers the TR Enabling Nickel-Teflon coated AR-15 Bolt Carrier Group (BCG). The reviewer details its construction, including an 8620 steel carrier and Carpenter 158 steel bolt, both MP tested. Key benefits highlighted are the easy cleaning facilitated by the Nickel-Teflon coating, which is compared to non-stick cookware, and its ability to function with reduced lubrication, making it suitable for high-round-count or suppressed use. After 480 rounds with zero malfunctions, the reviewer finds it to be a solid performer for its price point.
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