This video demonstrates the use of a rare Rock Island Arsenal USGI trigger pull gauge for the M16 rifle. The gauge, inspected in May 1995, is designed to measure the minimum trigger pull weight, specified as 5 pounds plus 1 ounce for the M16A1. The instructor highlights its rarity and provenance, likely from the Bill Rica collection, and provides a step-by-step guide on its proper application in a safe, unloaded environment.
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