Military 1911 Gauges
In https://forum.m1911.org/showthread.p...-ACP-for-M1911, there are questions about military issue headspace gauges for the M1911A1 pistol, and the below pictured gauge is shown. As most of you probably already know, that gauge was used to check serviceability of the barrel bushing, as shown in pics 2 and 3. The end marked 'F' is used to measure out-of-roundness in the ID of the bushing. The end marked 'E' is a No-Go gauge used to check for wear. During the time that we were working on 1911s in the Army, I used those gauges frequently. There are three additional gauges that were issued for the pistol: a snap gauge to measure the diameter of the slide stop shaft, another snap gauge whose purpose eludes me, and another plug gauge which I also cannot recall the use for - all depicted in the line drawing shown below. Google was less than helpful, so I'm asking here if anyone can recall what the additional two gauges (one plug, one snap) are used for.
Bbl Bushing Gauge.jpgGauge2.jpgGauge3.jpg 
Retired, twice. Now just waiting for the reaper.
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