Even if it were 100% bone stock 1 malfunction is in the ‘shit happens’ category and nothing to be alarmed about.
Even if it were 100% bone stock 1 malfunction is in the ‘shit happens’ category and nothing to be alarmed about.
In addition to what everyone else said, try swapping the stock barrel back in to see if you can isolate the problems to that one component. Some of what you've described sounds like a barrel fitment issue. Gen1-3 9mm Glocks already have weak extraction and ejection as it is. Even the littlest thing is often enough to start causing issues in those two areas.
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“Drop-in” barrels CAN require fitting. The “few” failures to go into battery reinforce this statement. Regardless, this adds a variable.
“USPSA Carry Optics” means that it is a match game/sport gun. If not used for defense or carry, well, just carry on. See if more problems occur. The optic, itself, adds weight, unless material is removed from the slide, to compensate. Regardless, adding weight to the slide adds a variable.
Any finish/re-finish, that adds material, makes tolerances tighter. I have no idea how many repetitions of the slide cycling that it would take for DLC to adequately wear-in. Regardless, this adds a variable.
I am not trash-talking Magpul, because I have no earthly idea whether they are better or worse than OEM, but, well, Magpul mags are not OEM mags. This adds a variable.
There is no harm in reaching into your box/bag/bin of fresh, new RSAs, and making the swap.
I have always run OEM ejectors and extractors, in Glocks. The only time I changed spring weight, from OEM, was to solve the infamous G22 problem, 22 years ago. (Glock, The Company, was still denying that the problem existed, but a local Glock armorer knew that stronger Wolff mag springs would be the work-around cure. He was right.)
I am not the best person to ask about this stuff, because none of my several G17 pistols, Gen3, Gen4, or Gen5, have ever malfunctioned. Dud rounds of ammo happen, occasionally, but no mechanical G17 weapon malfs. The only Glocks to give me any problems have been that G22, bought new in 2002, another G22, bought later, with a slide latch that did not like* 180-grain ammo, and a Gen3 G29, which I bought pre-owned, with an aftermarket recoil spring and guide rod. The instant cure for that G29 was to swap to a stock Glock RSA. My answer for everything Glock is usually a simple “use OEM.”
*180-grain ammo would rub against the slide latch, pushing it upward to prematurely lock the slide back.
Retar’d LE. Kinesthetic dufus.
Don’t tread on volcanos!
Good info so far.
Especially lubing the gun. In addition to the barrel, one drop on each frame rail and a drop on the spot where the connector and trigger bar meet is recommended.
To add:
In addition to exterior barrel fit, aftermarket barrels may have slightly tighter chambers.
If it continues:
Does it have the part number 336 ejector ? If so the part 30274 updated ejector may help.
When you detail strip the slide does the extractor drop out or do you have to pry it out?
IME an Glock extractor which has to be pried out is not moving freely and impedes function.
A light polish of the top and bottom surfaces of the extractor (as detailed elsewhere on PF) can restore it to proper function.
OEM Glock mags are preferred.
Glock PMAGs have 2 issues: weak mag springs and a reduced internal volume since the all polymer mag body has to be thicker while maintaining the same external dimensions. Less space = More friction which is a problem with weaker mag springs.
I reserve Glock PMAGs for range training only, though for some reason their extended mags (21 and 27 rounds) seem to work better than their 15&17 rounders.,
Haven’t looked this week but several places last week had factory Glock mags for 20 bucks . No need for aftermarket mags .
Potential causal factors:
-Non-OEM barrel
-Non-OEM magazines
-Non OEM finish.
-Non-OEM RDS milling
However, 1 malfunction may just be an anomaly.
Another question pertaining to a potential causal factor: What ammunition are you using?
Best, Jon
Last edited by JonInWA; 05-08-2024 at 01:46 PM.
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Certified Glock Armorer
Seconding the 30274 ejector. Cheap and easy to replace. My G4 17's all have them and ejection is more consistent in them. At the very least, no more brass to the face issues.
I am a fan of the Apex extractor too. May or may not have an impact though.
My money's on the mags.
In a sort of ghastly simplicity we remove the organ and demand the function. We make men without chests and expect of them virtue and enterprise. We laugh at honour and are shocked to find traitors in our midst. We castrate and bid the geldings be fruitful.” ― C.S. Lewis, The Abolition of Man