Videos tagged with Headspace Gauge

Mixing and matching AR-15 bolt carrier groups (BCGs) is generally possible due to standardized civilian market manufacturing. However, it is crucial to verify safety by checking headspace with a 'no-go' gauge. Swapping worn parts or high-round count BCGs can introduce compatibility issues and potential malfunctions.

This video offers a comprehensive review of cartridge headspace, explaining its meaning and how different case designs influence it. While not essential for casual shooting, understanding headspace is crucial for those acquiring used, antique, or military firearms. The content also covers the identification and usage of headspace gauges, aiming to provide viewers with a deeper comprehension of their firearms and the ammunition they use.

This video details the process of changing an AR-15 barrel to .300 Blackout, highlighting that only the barrel needs replacement. It covers essential tools like an action block and armorer's wrench, and emphasizes critical steps such as verifying headspace before installing the new barrel. The demonstration uses a Brownells B-TAC 16-inch carbine barrel with a 1:8 twist rate.

This guide, presented by Steve Ostrem, Technical Services/Gunsmith at Brownells Inc., details the critical process of checking firearm headspace using Clymer gauges. It emphasizes the importance of headspace for safe operation, explaining how 'Go', 'No-Go', and 'Field' gauges are used to measure chamber length against SAAMI standards. Proper headspace checks protect against potential firearm malfunctions and user injury.