This video showcases unique Soviet-era AK and SKS gauges, including specialized tools for magazine lips, front sight adjustments, firing pin protrusion, extractors, erosion, and headspace. The instructor explains their utility in accurately evaluating US-made 7.62x39 firearms, where common specifications may deviate from original Soviet standards.
This video provides a detailed physical inspection of two Salient Arms International Bolt Carrier Groups (BCGs). The instructor, with clear expertise in firearm components, meticulously gauges and examines various aspects of the BCGs, including headspace, extractor fit, gas key dimensions, firing pin protrusion, and internal finish. Several issues are identified, such as oversized gas keys, potential extractor problems, a failed firing pin hole gauge, and significant internal machining marks, highlighting potential quality control concerns with these specific units.
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