This video presents a critical evaluation of a Black River Tactical (BRT) 14.5” Optimum Cold Hammer Forged/Chrome-Lined barrel, focusing on a significant chrome lining failure within the first 100 rounds. The presenter details the unexpected issues encountered, including a lack of timely warranty response from BRT. Despite the problems, the video offers a comprehensive data-driven analysis, including barrel inspection, borescope footage, headspace and gas port measurements, and performance testing with various ammunition types (Winchester M193, IMI Razor Core, Federal Gold Medal). Group results and comparison data are also presented.
The Militiaworks Crane-K prototype is a duty-grade AR-15 featuring a Carpenter 158 bolt and BRT cold hammer-forged barrel, aiming for mil-spec integration. While generally well-assembled, it required buffer tuning for reliable unsuppressed use with lower-powered .223 ammo. Production models will feature CMT handguards and chromed BCGs, with the prototype utilizing an FCD quad rail for NVG zero retention.
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