Anyone have a M&P .22LR pistol?

[ThreeFingerPete]

The Sig 1911-22.

Chances are that there's some poor machining on the pistol, and there is too much resistance to the slide moving back under recoil. When I bought mine, this was common so I found 3 and chose the one that was the smoothest. It ran 100% out of the box for as long as I owned it.

I'd say that there's likely a burr on the slide/frame rails, the bushing fit might be too tight, or possibly something is up with the barrel lockup. It should be pretty easy to figure out once you take it apart and play with it.