I packed one of these with a 2" barrel when I was a Strategic Air Command Minuteman II ICBM combat crew member at Whiteman AFB, MO, 1977-1982. Some HQ yahoo mandated we load with only 5 rounds. I don't think any of them were ever fired, just rotated and cleaned occasionally. Would love one just for the "good" memories of events like the times (more than one) we got emergency orders to open the Safe - yes, that one - insert the launch keys, strap into our chairs, and wait for the next order...which thankfully was "stand down..." otherwise, we likely would not be here.....