The Castle’s M20 75mm Recoilless Rifle

I had some clean-up and preservation to perform. Built by Firestone Canada, it was left with the Italians after WWII who surplused them out in the late 90’s. The demil process to get it into the US was hard on it (as intended) and the repair work to build it back to a legal display dummy added to the stress on the finish and accelerated the corrosion. Since the firing mechanism is still serviceable, this transfers like a rifle, as you can adapt a sub-caliber device to function in it. You have to be careful – the issue subcaliber devices mimic a complete cartridge. Due to the requirements of the status as a legal dummy, the gun will not chamber a proper round. You have to modify the sub-cal device to work, *not* the gun. Or the AlFabeT Bois will not be happy with you. There are some people who used to do this, though I’m not sure that’s being done anymore, as these have all disappeared into collections and you don’t see them on the market much.

The Castle’s M20.

Another view of the M20, looking at the breech end.
Breech open on the M20.

A bit of Infantry gunner zen…

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U.S. Army Spc. Zac Moore, a mortarman with Mortar Platoon, 2nd Battalion, 504th Parachute Infantry Regiment, 82nd Airborne Division, sights in an 81 mm mortar tube at an observation post overlooking the Darwazgay Pass in Zabul province, Afghanistan, June 23, 2014. Moore was part of a joint air assault mission conducted with Afghan National Army soldiers assigned to the 1st Kandak, 2nd Battalion, 205th Corps. (DoD photo by Staff Sgt. Whitney Houston, U.S. Army National Guard/Released)