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Discussion Starter #1 (Edited)
Viridian X5L on FsN question/issue

I got an X5L-FDE for my new FDE MkII. They sell on Academy for like $380 and claim to fit "most full size pistols" and mention picatinny rails online . I didn't pay that much, but paid more than I would generally think reasonable for a flashlight because I like how it looks and the brightness of it.

Well lo and behold, I got it in the mail yesterday and it doesn't fit. I tried it on 3 different pistols with a standard picatinny 1913 rail: Sig P250 9mm, FNS-40 and of course Mk II Five Seven. It was too narrow to fit around the rails of any of them. I searched and searched online but nobody else seems to ever mention the X5L being too small for their pistols. I would chalk it up to just a defective model, but then I remembered a friend of mine has one on his HK45, and asked him about it. He said that on both his FsN and his HK the X5L (older model) is bent out on the brackets by about a millimeter or so.

If I disassemble the mounting brackets on mine, I can put them on the rail of the gun, then screw them into the light body, but it is bowed out just like the other one. If you look at it straight on down the barrel, you can visibly see the light is angling down to the shooter's right.It's pretty sketchy because it's more likely to strip out the tiny little mounting screws by putting angled pressure on them.

Does anyone here have this model and can shed some light on this? I'd love to find out if this is the standard condition of these lights so I don't waste more time and money shipping it back for exchange, returning it, getting replacement parts, etc.

Thanks!
 

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Discussion Starter #3 (Edited)
Forgive me if this hosting is verboten for some reason I'm new to the forum
https://imgur.com/a/YkEPU

vvv photo demonstrating mock attachment from box


vvv mounting brackets too narrow for rail


vvv when assembled on rail it goes on but is clearly being forced outward from the rail


vvv side by side real mount vs mock mount from box


vvv looks pretty nice when mounted... if only it fit!
 

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Discussion Starter #4
Well I called Viridian today and asked them about the issue. The girl informed me that this is how it's supposed to fit. I was pretty taken aback by that, for a product they retail at over $300, that is crazy. I mean, not only is it cosmetically unappealing (and annoying), it also affects the consistency of the installation, meaning the laser would need to be recalibrated every time it's installed. Plus, you can feel a strong resistance while putting in the small screws for the mounting brackets, which means those threads are being stressed and therefore prone to stripping and potentially ruining your glorified flashlight.

I'm a motorcycle racer, and if a part fit like that on a bike and the answer was "it's supposed to be like that" there would be rioting in the streets lol

Needless to say, I'm pretty disappointed. I'll probably try to sell it and maybe get a tlr1, since my friend said that one fit perfectly on his 1913 rail
 

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I'd call back and talk to someone else, that is not how they're supposed to fit, the X5L on my M&P is perfect.
 

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I have an X5L mounted to my Five-Seven ... and love it ... !!!

It has been about two years since I mounted it ... and I recall an initial "issue" such as your experience. I can't remember exactly, but I fiddled with it and noted I had not mounted the screws in the correct position. I hope my pictures (following) will show the difference. Good luck ... !!

*****
https://1drv.ms/i/s!AlXFWKvdiYbvmTHo6kTmffYpb7yA
https://1drv.ms/i/s!AlXFWKvdiYbvmTDBKBF5ILjdlAwv
https://1drv.ms/i/s!AlXFWKvdiYbvmS9jWNOwst3QdxY2
*****
 

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Revised links ... above ... hope they work.

Counsel please ... the "insert image" icon/option does not seem to work for me. Thanks.
 

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Discussion Starter #9
Called them again and they said the same exact thing. You are supposed to loosen the small torx screws on the body, then slide it on, then tighten everything down and install the long rail screw. And after doing that, the one side of it will be bowed out slightly. Their words.

I have tried every possible mounting configuration, including taking off the brackets entirely and assembling them on the rail. I have many years of mechanic experience on motors and fabrication experience, so if it was possible I would have made it work. The body of the light itself is too narrow, and the way the brackets are slotted into the body means that there's no way to shim them out or anything. The only option on my end is to "deal with it" or to attempt to bend them outward which risks breaking or fatiguing the material.

There is a difference between our models, Qontry - yours is the generation 1, mine is the gen 2. This is evidenced by the single screw on each side of the body on yours, whereas mine has 2 screws on the left side and one on the right. It is no coincidence that the right side is also the side that gets forced outward. Through some processing of available information through my brainfolds, I have deduced why the gen 2 has this "feature" and the gen 1 does not.

When searching reviews for the X5L, older reviewers complained that sometimes the device did not squeeze the rail tight enough. I'm not sure if this is due to inconsistencies between rails on guns, or inconsistencies on the products themselves. My friend's model is a gen 1 and his bows out like mine, whereas other people have it fit perfectly or too loose, so that would indicate the product is not consistent. Regardless, it seems their solution to this issue is to make the device slightly too narrow and use material that is designed to bow out. The customer service person I talked to told me that last part verbatim.

----

Qontry - if you have an adblocker or popup blocker it could be affecting the function of the image icon
 

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When searching reviews for the X5L, older reviewers complained that sometimes the device did not squeeze the rail tight enough. I'm not sure if this is due to inconsistencies between rails on guns, or inconsistencies on the products themselves. My friend's model is a gen 1 and his bows out like mine, whereas other people have it fit perfectly or too loose, so that would indicate the product is not consistent. Regardless, it seems their solution to this issue is to make the device slightly too narrow and use material that is designed to bow out. The customer service person I talked to told me that last part verbatim.
Have you measured the rail on the gun to see if it is within spec (i.e not too wide)? Just wondering....
 

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Thanks, chapmonkey ... didn't note Gen 1 vs Gen 2.

Take a look at pictures here:

https://smile.amazon.com/gp/product/B0026O1EY4/

Shows how actual mounting looks on a sample. See particularly upper front screw positioning and function on rail. I vaguely remember this is where I originally was a bit baffled. Hope this helps ... Qontry

P.S. - Price is almost half of what I paid for my Gen 1 ... and plan on ordering another.
 

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Discussion Starter #14
Have you measured the rail on the gun to see if it is within spec (i.e not too wide)? Just wondering....
Yeah I got the dimensions for the standard 1913 rail online and compared mine, they were all within spec. I had 3 different pistols with that rail and two different manufacturers, so I didn't think it was the rail. The dimensions of the mounting bracket for the light are like 1mm more narrow than the rail, and the angle of the V shape is more acute than the rail.
 

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I have an X5L mounted to my Five-Seven ... and love it ... !!!

It has been about two years since I mounted it ... and I recall an initial "issue" such as your experience. I can't remember exactly, but I fiddled with it and noted I had not mounted the screws in the correct position. I hope my pictures (following) will show the difference. Good luck ... !!

*****
https://1drv.ms/i/s!AlXFWKvdiYbvmTHo6kTmffYpb7yA
https://1drv.ms/i/s!AlXFWKvdiYbvmTDBKBF5ILjdlAwv
https://1drv.ms/i/s!AlXFWKvdiYbvmS9jWNOwst3QdxY2
*****
Okay ... as I mentioned in another reply, I ordered another Gen 2 X5L ... and just mounted it on my Five-Seven FDE (although I will be moving it to one of my SIG X-Fives). No problem with the mount. Hope the following helps.

*****
https://1drv.ms/i/s!AlXFWKvdiYbvmUVOFx8q9Szg02YE
https://1drv.ms/i/s!AlXFWKvdiYbvmUSGZ15tC2qghTgR
https://1drv.ms/i/s!AlXFWKvdiYbvmUZNuvnQUVw8p8kj
*****
 

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i sold my viridian it laser it self was good but the mounting and the battery cap was garbage.
Did you have the earlier screw on version or the later twist and notch version? Viridian told me people were stripping the threaded version so they 'upgraded' to the notch version.

I prefer the earlier. Who cross threads but a monkey ?
 

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I run a TLR-4 on my Five-seven and it fits perfect. Fits so good that I can swap it to my FNX-45 T and the laser is dead on (we are not talking competition accuracy here, just 15 yards). I looked at Viridian before buying the TLR, but could not pass on the TLR for the money. Hope you got it sorted out.

Sent from my SM-T550 using Tapatalk
 
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