Videos tagged with Gas Leak

This video provides an abbreviated autopsy of a KAK K-Spec bolt carrier group, identifying significant gassing issues. The inspection reveals leaks at the carrier key and bolt tail, an oversized bolt tail opening in the carrier, and an improperly machined internal transition that can damage gas rings. The dual ejectors and weak extractor spring are also noted as potential contributing factors to poor performance.

This guide details the inspection and preparation of AR-15 carrier keys, emphasizing critical dimensions, surface trueness, and internal finish. Proper gauging, stoning the bottom for a flat seal, and polishing the funnel improve gas system efficiency and longevity. The instructor highlights the importance of a good seal to prevent gas blow-by and wear on the gas tube.