After 15 or so 100%-reliable Glocks over more than twice as many years, I now have a G30S that is refusing to lock back after the last shot on about a 50-50 basis, regardless of ammunition, swapping magazines (both 30 and 21 models), etc. I have been trying to troubleshoot every possible problem, and that has included disassembling several magazines, cleaning them, etc. I replaced springs and followers in a couple of them as well, still no improvement.
Oddly enough, one of the magazines that came with the gun is 100% reliable to lock the slide back, whether racking it manually or shooting. But the second mag that came with it is not even close to being consistent. They look identical in every way.
When the slide is off the frame, and an empty mag is inserted, every one of them causes the slide stop lever to raise up, to what appears to be a reasonable height that should lock it back. But again, only one magazine seems to be working consistently, with the others being very hit-or-miss.
Full disclosure: this problem started with the original factory part installed. I have always like the extended levers, and thought that installing one might remedy the problem. (I've made sure that the spring for the slide lock lever is correctly positioned under the trigger bar.) I have done this on almost every other Glock I've owned, with no problems whatsoever. But the new lever did nothing to alleviate the problem.
There are competent gunsmiths in my area - have been trying to solve this myself, and thought I would try by getting some input here before I go that route. Thanks.
Oddly enough, one of the magazines that came with the gun is 100% reliable to lock the slide back, whether racking it manually or shooting. But the second mag that came with it is not even close to being consistent. They look identical in every way.
When the slide is off the frame, and an empty mag is inserted, every one of them causes the slide stop lever to raise up, to what appears to be a reasonable height that should lock it back. But again, only one magazine seems to be working consistently, with the others being very hit-or-miss.
Full disclosure: this problem started with the original factory part installed. I have always like the extended levers, and thought that installing one might remedy the problem. (I've made sure that the spring for the slide lock lever is correctly positioned under the trigger bar.) I have done this on almost every other Glock I've owned, with no problems whatsoever. But the new lever did nothing to alleviate the problem.
There are competent gunsmiths in my area - have been trying to solve this myself, and thought I would try by getting some input here before I go that route. Thanks.