Videos tagged with Bolt Carrier Group Testing

This guide details a comprehensive physical inspection and testing procedure for a Toolcraft Nickel Boron Bolt Carrier Group (BCG). It covers checking gas ring integrity, carrier bore measurements, gas key staking, borescope inspection of internal finishes, bolt component checks, firing pin protrusion, and headspace. The process highlights potential issues like excessive wear, uneven coating application, and critical dimensional tolerances that can affect firearm reliability.

This video provides a detailed physical inspection and testing procedure for two Sharps Rifle Company Bolt Carrier Groups (BCGs). The instructor performs a series of tests including gas ring tension, ejector and cam pin fitment, firing pin movement, extractor function, magnetism, headspace, and bolt tail seal. The inspection also utilizes a borescope to examine the internal machining quality of the carriers. While both BCGs passed basic functional checks, the analysis highlights areas of concern such as rough internal machining and potential gas inefficiency in one unit.