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Discussion in 'General Glocking' started by onehourburn, Jan 15, 2010.
Sometimes the slide does not lock back after the last round. Is it the mag?
which glock is it? watch your thumbs, both mags or just one? mark the ones it doesnt lock back with.
I would compare the mag that works and the mag that doesn't. The base inside the mag is suppose to push the slide lock up when the mag is empty which locks the slide. My friend has a similar problem with his sig. It turned out to be one of his mags which had a defective base.
Is it always the same mag that does it? Could be bent or dirty slide stop lever, recoil spring that is too strong, weak ammo, inadequate lube on slide, or a weak grip.
Move your thumb.
Thanks everyone!!! I will test out all your suggestions next time out with the 26.. I will report back.
Thanks a million!!!
i have the same problem and its my thumb
EC Mills, you just crack me up...<heh heh heh>
Hey, if you have a lot of miles on your mag springs, it could be as simple as changing them out. The prvious poster was correct in his assessment, but incorrect in terminology--it's not a "base", it's a follower that pushes up the slide stop. When the spring gets weak it no longer has enough oompf to move it upward.
If it's been fine and just started doing this, 90/10 it's the mag spring. If you're new to the gun, I'm goin' with EC Mills. Move your thumb (your thumb is holding down the slide lock lever).
Yeah, it could be a dirty or worn lever, but I have yet to see one, and I use my guns *hard*. Heck, I put 2500 rounds through my G35 Limited gun without cleaning it on a dare with a 1911 type. Believe me, the slide lock was dirty, and no, it didn't fail to lock back. <g>
Glock provides the following as trouble shooting tips, start with these:
Mag follower broken - replace
Dirty mag - clean and inspect
Weak mag spring - replace mag
Worn slide stop lever notch - contact warranty dept if new mag and new SSL don't fix issue
Dirty Gun - Clean
Needs Lub - Lub
Deformed mag - replace
Trigger pin inserted too far (left or right); slide stop lever worn - this can cause the SSL to bind. If SSL no moving freely press the trigger pin slightly to the right until the ssl moves freely
SSL damaged - inspect and replace
underpowered ammo - change ammo
Shooting with unlocked wrist - lock wrist
improper grip - tighten grip
As an Armorer, I'd check these first. Good luck.
I have the same problem only on compacts and yes its my thumb
You guys are great!!! i think it was my thumb.. I had zero problems today.