I have several Garands and a couple of 1903's, both shoot the same 30-06....Garands aren't so bad on kick because of the gas bolt cycling, but the 1903's kick pretty good and will make your shoulder sore after a lot of shooting. I was just thinking about what it would do to your wrists in a pistol..
It must be like a shotgun with a pistol grip....for my SGs with PGs, I went to the shock absorber kind (Copstock, breacher, etc.) - they work great.