Here’s a good friend of mine, Mac, having way too much fun with his replica 37mm Anti-Tank Gun.
You can see more about Mac’s gun by reading Until The Guns Come Off The Line. The story starts off with a Capt Johnson in 1940 who didn’t have enough real guns to train his troops…so he built his own! He made the training guns from surplus Dodge’s and other vehicles. Part two of the story picks up with Mac deciding to build his own. Check it out.