range trip problems with my new CM9
so after getting my CM9 yesterday i brought it home and cleaned it really good, after heading out to the range with 200 rounds i loaded up the magazine and begun to shoot my pistol. After all 6 rounds were fired the slide locked back like its suppose to, so i load another 6 rounds and the same thing happens. Im thinking here this thing should be OK well that's when i was wrong, now the slide is locking back "sometimes" after the last round. Then the recoil spring got hung up somehow and it took me about 5 minutes to unjam it. I'm guessing the slide locking back problem might have to do with the magazine and i have no idea what to think about the recoil spring but until i get a new mag i guess I'm gonna have to continue to carry my glock 33 :smt022 what do you guys think the problems could be, i only have 100 rounds through it and i cant trust it right now. Thanks Guys