I have to find it. I remember when it jammed a bit, and this was years ago.....that I cleaned the gun up real good and also sprayed/cleaned the mag also, and have it in a bag with some other spare mags from other guns. I am curious though and will try to find it.....you know how that goes, you put something in a safe place, and then you can't find it.....again I haven't shot this gun in years. I stumbled upon it just shortly before starting this thread. I just took the time to look at it & admire it. Guns like the Sport King and others just aren't made anymore. It was a different time. Even on mine where it isn't perfect as I'm left handed and the grips are for a right handed person ...but it's ok. I just like the gun as it is. I would imagine it to be very hard to find original left handed grips, so I'm happy with what I got. I will find the mag and play with it a little bit to see if that was the problem. I certainly know it's clean now, yet then again, it wasn't really dirty to begin with.