The Unofficial P64 Resource Forum

If it is not going fully into battery the first thing I'd do is make sure the recoil spring is on the proper direction, narrow end towards the rear of the gun. A thorough cleaning can't hurt too, the one I received from Classic still had deposits of cosmo and such

I paid extra when I sent it in and got a real nice one. I'm just not home to clean it, inspect it, and fire it.