[fastbolt]

De nada.

It doesn't happen all that often, I'd think, just thinking about my experience with more than a thousand S&W's over the course of many years, but sometimes a mag catch body (the shelf that engages the mag) can become worn, damaged or just not be within the right end of the normal tolerance/spec range to work well in one particular frame. I've even had that happen with brand new TSW's.

While I wouldn't be adverse to removing a burr, as long as normal function could be restored, sometimes it's just easier to replace the part with a new one and not fool with it.

Then again, I had the opportunity to come across a new 4566TSW mag which had the cutout in the body located significantly away from where it was supposed to be in order to retain the mag. Go figure.