Whozyodaddy

Swapping out the slide stop lever did not correct the issue. My grip also does not seem to be the culprit. Any other ideas? Thx

My thread was hijacked a bit above, but either way, my g17 has the standard slide stop lever on it (non-extended version). My grip on the weapon is the same on my other Glocks and I don't ever ride the lever. Those other guns function just fine. Thanks for the continued input

Holy crap, that is dirty! I will pull the pins and reinstall. Wish I was able to get to the range a little sooner and get it sorted before shipping it back to Glock. I read awhile back about about issues with the earliest MOS models (with optic mounted) that were having issues cycling, locking open, etc possibly due to the added weight of the optic? I can't imagine that is at play here? My RMR weighs so little!

That was my thought...just can't get to the range for a few days. Wondering if anyone thought this could be the culprit??

Here is the photo of what I'm talking about. Yes the guns are dirty as I just left the range...

Thanks guys for the help....the spring on the slide lock lever is in the correct position. The only slight thing I noticed is the triangular piece that protrudes off of the lever, to the right toward the magwell, angles up slightly as compared to my other Gen 4. Not sure if this could even be an issue.... Can't seem to upload a photo...

I have a 6 month old stock G17 gen4 MOS mounted with an RMR that repeatedly experiences slide lock (open) while firing with rounds still in the magazine. The gun probably has 500 rounds through it with various ammo and several different magazines (factory old, factory new, magpul) and still the slide locks open. My grip does not seem to be the issue as I have a nearly identical gen 4 G17 non-MOS that does not have this issue. Please help! I cannot see anything wrong with the weapon, but something is obviously not working!