i recall ken hackathorn mentioning (May 2008) that some .40 S&W glock models had weird frame flex issues with some lights.
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i recall ken hackathorn mentioning (May 2008) that some .40 S&W glock models had weird frame flex issues with some lights.
Seeing that a lot of these reports are of X2/300s, would something like an M3 (or another polymer-bodied light) be a 'fix' as well?
And thanks for the info so far!
No, it is not the light, it is the .40 Glocks.Quote:
Originally Posted by Bob
I remember there being some issue with the G23's and Surefire X200's. I have a Glock 22 among others and it is fitted with an X200 and I have had ZERO malfunctions with it. Maybe I got lucky.
I have a G-35 with a TRL-1 with no malfunctions after about 150 rounds attached. I also havea stainless steel guide rod with a 22lb spring on it. Don't know if that has any effect on it.
Awhile back, at my former employment, we ran G22 with Streamlight M3's with little if any reliability problems, BUT we ran training ammo, white box, red box etc almost exclusively, including duty.
When we got tired of the M3 light shitting the bed regularly, TLR1 were purchased, we also switched to Ranger ammo for duty and quals. And the problems started. Failures to feed with the round nosediving into the frame/feedramp.
The armorers, academy armorers(we used their range) and a Glock rep all couldn't figure it out.
Mag springs and followers were switched and ammo was changed to Hydra-shok(lower recoil then Ranger, I think), and the problems lessened, but never really went away.
Keep in mind, this place had no preventive maintenance in place, so they had no idea how many rounds had been put through the gun and recoil spring. They had just had the frames switched by Glock recently, though.
My new employer, apparently had the same problems, when they tried lights on the gun, their answer was to issue SureFire 6Z's to everyone:rolleyes:
Basically what happens, is the light stiffens the frame, there by making the slide run faster, and the mag can't keep up. IIRC the 40 uses the same recoil spring as the 9, that can't be good. It may work at first, but as springs, recoil and mag, start to ware, problems arise.
In the other thread mentioned a Fed has seen no problems at all with the 40 glock and lights.
I think it comes down to a combination of ammo both profile and recoil, the light, the mags, and the recoil spring.
Bob
Bob,
I believe that you are correct. It is a combination of light(s) types, ammo and mags, etc...
Quote:
Originally Posted by R Moran
I have 2) X300's mounted on Glocks. A 19 and 21. No problems.
I had an X200 on a 23, and it was not uncommon to stovepipe during rapid dumps with the light mounted.
Preface; I am not a certified gunsmith or Glock armorer. YMMV.
After staring the mechanical down, during slow hand cycling, I decided to dremel a very, very slight amount of material from dust guard with a barrel sand disk to increase the clearance around the slide end and down the length of the slide rail. So little, that you can't tell its been modified and there is no noticeable gap. There was a slight upsweep on the dust guard that appeared to cause grabbing and friction between the dust cover and the slide, right at the end of the slide. I kept the plastic guide rod but smoothed the head with sandpaper.
It may be a coincidence, but no more malfs afterward.
I have checked my other Glocks, and 8 have the same upsweep bow, and 2 do not. I probably could have used a "rail boil" to accomplish the same thing. I did that on a 19 to see if it would work, but it was not to correct a malf. I was just killing time.
I have no theory why the G23s have this problem, other than the reduced clearance of the .40 barrel used in the same sized slide and frame as the smaller 9mm.
G35 with an X300. Brand new mags (#8 follower), over 500 rounds without a malfunction. This was with Speer Lawman training ammo, I still need to test the duty ammo (Speer gold dot 165)
Theres a pretty good thread over at 10-8 about this. The malfunction is usually a Failure to feed, not a stovepipe.
Perhaps you had some interferance from the dust cover causing the stovepipes, and sanding helped it, but usually the light causes to fast of a slide.
Its generally only found in the Glock .40's. A fresh recoil and mag spring probably mask the problem to a degree, along with softer shooting ammo. See what happens long term, with an older springs set, and heavyier shooting ammo.
Theres alos been internet rumor, that Glock IDed the problem and solved it, but who knows, maybe they just mean the new follower and 11 coil springs?
Bob