The MANSON PRECISION 30 M1 Carbine GO Gauge ensures safe firearm operation by measuring the minimum chamber depth according to SAAMI recommendations.
Mixing and matching brands of headspace gauges can lead to inaccurate readings due to tolerance stacking, so it is advised to use gauges from the same manufacturer.
The gauge is made of M7 high-speed steel, comes in-the-white, and is precision-ground and hardened for durability.