I just bought one of the auction M64 2" round butts that were sent to the CDC, Calif. Dept. of Corrections. I chose one that had the pinned bbl. Out here in Utah there is no limit as to the type of concealed weapon we can carry, so I am going to try this gun for that purpose. I have a M60 which is too puny, but I do have a nice Ruger SP100 in 357 that is a fine gun. I am a big guy so I do not have any trouble concealing my favorite, a Sig P220 .45 ACP. I just hope this M64 shoots to point of aim with hot ammo. Big Larry