3rd gen glock 23 with light attached

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I have heard that attaching a light to the rail on a 3rd generation glock 23 can cause the gun to jam. From what I've read, the weight at the front increases the velocity of the slide, and the magazine can not feed fast enough. From what I understand, glock fixed this problem with new magazine followers and stiffer magazine springs.

My magazines have a 2 stamped on the back, and number 9 followers, can anyone tell me if these are the new kinds that have supposedly been fixed?

Also please chime in if you have any first hand experience, or any other information on this problem.
 
I've had a TLR1 on my Glock 23 for two years now and have had about a half dozen malfunctions. All but two happened when I was running failure drills with snap caps in the magazine. The other two failures happened a few months ago during the same training session and were due to lack of maintinence on my part (went to long without oiling the gun). During the two year period I've put over 15K rounds through her. Soooo from my personal experience, I have had zero problems with the Streamlight attached.
 
The compact pistol's magazines are suppose to use springs with 9 coils. The full size pistols are suppose to use an 11 coil mag spring when using a light attached. These are for full capacity magazines.

I would designate a mag (or two) with a new spring that was to be used for defensive purposes with a light attached and not use it for any other routine shooting so as to keep the spring as strong as possible...in other words, have practice mags and carry mags so that the carry mags will always be strong so that if any failures due to the mags do occur, it will be on the range instead of in a moment of crisis.
 
I began to have feeding issues with my GEN3 g22 after I mounted a light on it. I carried the gun for over six years and never had one single malfunction until my department started allowing us to carry the TL1R and then it would misfeed almost every other round. I got some new mags and so far it has ran 100%. The strange thing is that other officers carried weapons with then same or close to test fire date and they have not reported any issues. I was accused of limp wristing the gun so my Lt shot it and had the same results that had. Then we both got accused of limp wristing by the range supervisor. By then I researched and found that the issue has been reported to glock and streamlight has a warning on their web site. I brought this to the attention of my ranger supervisor. Since he didnot find this out for himself he thought that it was impossable and denies it to this day.
 
Thanks for the input guys. My mags have 9 coils, so maybe I wont have any problems. I think that I am going to order a streamlight tlr-3 and try it out.
 
You've got the right mag springs for light attachment use so as long as they aren't weak you should be good to go...
 
I have the exact same set up and noticed something the other day. I had the mag loaded and in the G23. Did not have a round in the chamber. I have a TLR-1s. I have difficulty racking the slide back to load one in the chamber. I mean it doesn't want to rack. I release the mag and presto, slide will rack.

I haven't ever shot with the Streamlight on because why dirty it up if it doesn't need to get dirty? lol
 
Well, one good reason is to test the light, mount, and gun and see if it actually works when shooting.

There is no good reason to own one if you have never even tested it out.

rc
 
Attaching something to the slide can greatly affect slide velocity. Attaching something to the frame should not.

If you put the pistol in a pistol rest (frame touching the rest, slide free to move), do you expect it to jam? :scrutiny:
 
Attaching something to the slide can greatly affect slide velocity. Attaching something to the frame should not.

If you put the pistol in a pistol rest (frame touching the rest, slide free to move), do you expect it to jam?


I'm no physicist, so I am not sure if this is correct, but from what I have read, the added weight of the light reduces the amount of muzzle rise. Some of the force that would have been dissipated by the muzzle rise is directed in a reward motion instead of an upward motion. This added force causes the slide to move reward at an increased velocity.

I would think that the added weight would cause a reduced muzzle rise, but the same amount of force would be applied to move the light up, as there would be with out the light, and the muzzle would just not rise as far. However the research I have done around the web seems to say that this is not true.

With a pistol rest the muzzle should be free to rise as it normally would, without a rest.
 
btw, i've shot 500 rounds through my gen4 23 with my TRL-1 without a prob. this issue doesn't affect gen4 40cals. glock fixed it quietly and without admitting there's a problem. their my fav polymers, but i don't like their shady way of dealing with problems.
 
I have heard that attaching a light to the rail on a 3rd generation glock <23> 22 can cause the gun to jam. From what I've read, the weight at the front <increases the velocity of the slide> reduced frame flex, and the magazine can not feed fast enough. From what I understand, glock <fixed> addressed this problem with new magazine followers and stiffer magazine springs.
I made some changes for accuracy :p

My information comes from a Northern CA LEA that experienced the problem with their G22s...the problem does not affect the 9mm models.

Their understanding is that the weapon mounted light (WML) on the rails stiffened the frame and did not allow it to flex as it normally would in recoil...hence the slide completes it's rearward travel more quickly.

The Glock fix was to get the rounds in the magazine up faster to beat the returning slide. The solution was to be incorporated in the Gen 4 G22...which has it's own issues with the new recoil spring assembly
 
I just ordered a tlr-3. I'll post my results when I get it in and get some range time in with it.
 
My G23 consistently jams with a Streamlight TLR1 attached. The same light on a G19 and all is good. Go figure.
 
Update

I ran 2 magazines through the gun today, with the light attached. I had a failure to feed on the last bullet on the first magazine. It was handloaded ammo, and I noticed that the primer was not seated to the correct depth. Im not sure if that would affect feeding or not, it could have been a fluke, so I'll continue testing hopefully some more this week. This was my first jam on my glock. Since I loaded my own ammo, the previous bullet could have had a little too much powder, and caused increased slide velocity. I'm really not sure what happened, but I'm going to continue to investigate, and let you guys know how it goes
 
The best chance for the setup to work will be with strong mag and recoil springs...and I'd recommend checking function with whatever ammo you intend to use it with or at least an equivalent reload....may help to invest in an aftermarket recoil spring and guide rod so you can use a 20 lb recoil spring when using the light attached to the frame ... you're really having to tune it in with the attachment, ammo and springs...:scrutiny: ... best of luck and Merry Christmas!
 
I'm going to second 9mmepiphany's posting.

I know of an agency where their relatively recent production gen3 G22's were exhibiting feeding issues for a number of their shooters when lights were attached (I forget the specific light they were using). Last I heard, Glock sent them new mag springs to address the issue (their guns were 4-5 years old, so that's certainly prudent).

I've only personally listened to one other Glock armorer complain about a feeding issue regarding a G23 with a light attached. It was his personally issued weapon, too, so it's fair to presume he knew how to maintain the weapon and had done so. He discussed it during one of my Glock armorer recerts, asking the instructor and the rep what should be done to try and resolve the problem. He was told to try different ammunition.
 
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