Why won't this tac light fit on my Glock 19?

[gunsrfun1]

I bought this for a night shoot at my club, just wanted something inexpensive for the shoot. It fits my Polymer80 and Springfield Armory XDM just fine, but will not slide onto my G19 Gen 5. (The rail on the gun seems slightly too wide for it.)
That strikes me as odd. Do Glocks have some type of proprietary rail system? I searched the web but couldn't find anything.
Or, is this just another cheap light that is out of spec? (It actually seems fairly well made, so that would be surprising.)
Thanks
https://www.ebay.com/itm/313362354024

 

[jdh]

While close glock rails are not standard 1913 rails.

 

[The_Quartermaster]

Picatinny is what all Gen 5's use now, came about from one of the MHS requirements.

And you pretty much got what you bought.

 

[The_Quartermaster]

While close glock rails are not standard 1913 rails.

You may want to make sure that's true first, because Gen 5's are picatinny based. And OP mentioned a Gen 5.

https://www.bravoconcealment.com/bl...xt=The Gen 5 is 1.34,These changes are subtle.

 

[trackskippy]

Are you trying to "slide" it on, and have you tried to "rock" it on from the side?

Ive always found it easier to do the latter, with any of the guns Ive put them on.

Did it come with an extra "locking block" too? Maybe the wrong one is on there?

 

[gunsrfun1]

I think QM may have pointed to me to the answer. In the URL he posted, it says this:
"In addition, Glock adopted the specifications of 1913 light rail on Gen 5 models, whereas earlier models’ rails are very slightly narrower."
And indeed, the rail seems just a tiny bit too wide for the light to slide onto. (The light mounts front to back, not side to side, because it has a spring-loaded lever you push down and then slide it on.)

Plus, see this from an ad for a light on Amazon. Look at the chart where it separates the Gen 1-4 from the Gen 5:
https://smile.amazon.com/CRONHAWK-F...efix=tactical+light+for+glock+,aps,87&sr=8-37

 

[jdh]

You may want to make sure that's true first, because Gen 5's are picatinny based. And OP mentioned a Gen 5.

https://www.bravoconcealment.com/blogs/iwb-owb/gen-5-vs-gen-4-glocks-what-s-the-difference#:~:text=The Gen 5 is 1.34,These changes are subtle.

Adopting a standard and implementing it are not often the same thing. BUT, The Gen 5 page on the Glock website detailing all the changes from the Gen 4 to Gen 5 models make no mention of changes to the rail.

https://us.glock.com/en/learn/glock-pistols/gen5

 

[The_Quartermaster]

Adopting a standard and implementing it are not often the same thing. BUT, The Gen 5 page on the Glock website detailing all the changes from the Gen 4 to Gen 5 models make no mention of changes to the rail.

https://us.glock.com/en/learn/glock-pistols/gen5

None of which solves the OP's problem. Does Glock also mention that it's MOS plates are not correct dimensionally too? No, they do not and has been mentioned elsewhere as well.

Both could be solved by doing some due diligence.

 

[jdh]

None of which solves the OP's problem. Does Glock also mention that it's MOS plates are not correct dimensionally too? No, they do not and has been mentioned elsewhere as well.

Both could be solved by doing some due diligence.

Glock is PERFECTION!, they are right and everyone else is wrong.

There are "discussions" going on on many sites about whether to use the glock or the 1913 on the 19X/Gen5 frames. More are saying they had to use the glock size than the 1913 to get the accessory to lock up tight to the Glock rail. The consensus is to take your glock to the shop and try the accessory before you buy.

 

[trackskippy]

All my lights rock on from the side and dont slide on. Ive never had to change out the locking block on any of them, and the lights work on all the guns I have, including Gen 5.

 

[12Bravo20]

If Glock did change the frame rails, it was in the last two years. My Gen 5 frames all have the proprietary Glock rail with the wider grooves. The last two Gen 5 pistols I bought was in 2020.

I have several Olight brand lights that come with a Glock adaptor and a Picatinny adaptor. The Picatinny adaptor is loose in the Glock rail grooves.

 

[The_Quartermaster]

Glock is PERFECTION!, they are right and everyone else is wrong.

There are "discussions" going on on many sites about whether to use the glock or the 1913 on the 19X/Gen5 frames. More are saying they had to use the glock size than the 1913 to get the accessory to lock up tight to the Glock rail. The consensus is to take your glock to the shop and try the accessory before you buy.

My "accessories" come with a bunch of options already, no need to take anything anywhere but to the confines of my house really because that's the actual consensus from folks who don't penny pinch really and actually buy from mainstream brands (no offense to the OP, he made it known that he did it too, but he was also told that he got what he bought).