What's the Difference? NO-GO VS Field Gauge 7.62x39
This guide explains the critical differences between No-Go and Field headspace gauges for 7.62x39 firearms, particularly AK-style rifles. It details how to use these gauges to check for safe headspace, emphasizing that No-Go gauges are for new firearms and Field gauges are for used firearms. The video demonstrates precise measurements of gauge dimensions, including shoulder height and base diameter, highlighting the subtle but important variations that affect firearm safety and function, and notes the relevance of CIP specifications.













