SharpsDressedMan
member
Don't do what I did. After shooting my SIG P210, and getting ready to clean it later that night, I accidentally picked up an empty Walther P1 magazine and inserted it in the SIG, thinking that it was a SIG magazine. Both matte finished, 8-round, with similar floorplates. As soon as I did it, I knew something was wrong. THEN, it didn't want to come out. Come on, what could hang up an almost identical mag? After careful disassembly of the gun AND mag, it was determined that a small, flat spring mounted on the right side of the grip frame under the grip had found the cartridge index hole (obviously spaced differently than a SIG magazine), and had managed to "lock" a detent on the spring INTO the mag hole. You could not see this, as it was inside the mag well too deep. Now, you would have to be inattentive, and have both the P1 and SIG P210 around to do this, but other fast disasters from other guns are also possible. I saw a friend have a bit of trouble when they experimented with a S&W Sigma slide on a Glock 9mm (or was it the other way around?). It went on, almost a perfect fit, but didn't come off so easy. Has anyone else had near disasters with magazines of the wrong type, or mixing parts, or other things to warn us about?