Will Knights be producing more URX4 rails for us

David4570

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Minuteman
Feb 15, 2017
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Post Pandemic Inquiry
Does anyone have up to date info on commercial availability of the URX4 13” MLOK rails?
I had no idea the 13” version is so popular, but admittedly I’m somewhat behind the curve.
 
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I did call Knights some time ago and I was told all individual LE sales must now go through their subsidiary - Lawman’s and Shooter’s Supply. Alex at L&S hasn’t been able to source any and really didn’t know when any would arrive.
I found a couple other URX4 sizes but not the 13” which I’d really like for a build with a 13.9” Criterion Core barrel I ordered..

And yes, I did leave my email with all the usual sources for a notification. A good “clamp on“ may have to do but the barrel won’t be here soon anyway so I figure I just need to be patient and hope for the best.
 
Post Pandemic Inquiry
Does anyone have up to date info on commercial availability of the URX4 13” MLOK rails?
I had no idea the 13” version were so popular, but admittedly I’m somewhat behind the curve.
Not mine. Just found it for you. That's where I found my last one. Good luck.

 
Like everything KAC they're just difficult to come by at the moment. Parts from them are typically released in batches and its been a while since that rail was available. Keep an eye out for in stock notifications and I'm sure you'll find one.

For what it's worth, I have several rifles with urx4 rails and I think it's one of the best designs out at the moment, so don't give up on the hunt.
 
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Like everything KAC they're just difficult to come by at the moment. Parts from them are typically released in batches and its been a while since that rail was available. Keep an eye out for in stock notifications and I'm sure you'll find one.

For what it's worth, I have several rifles with urx4 rails and I think it's one of the best designs out at the moment, so don't give up on the hunt.
I could tell they had slowed production way down just from the lack of their product in the market. I didn't realize they stopped completely.

There is not one KAC SR-15 LPR for sale anywhere on the entire fucking internet. I own one, but wanted to grab another one. The last one that popped up on GB (as far as I have seen and I'm pretty diligent about stalking GB on the regular) sold for almost 7k, IIRC.

I never thought I'd entertain selling any of my KAC's, but here I sit...pondering...considering. LOL!!
 
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As much as I love those guys, I am not even sure if they know what they are going to produce. You just as likely to see a release of Mp5 rail as a URX4 in the length that you are looking for. They have been talking about a short 6.5cm for almost two years and barely produce their 22 inch upper. I think a lot of their production is dictated by mil contracts and if they are not tooled up for a run. Best thing to do is join some of the Knights groups on social media and see what pops up.
 
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My SR-25 ACC 14.5" came with the 13.5" URX4 Mlok which was ~0.2" too long to allow using a Surefire SOCOM2 and have its
ratcheting collar lock fully engaged, as the collar moves rearward when loosening it. I milled off just enough for a proper fit. I speculate that
the 13" variant was mfg. for this common fitment problem.

IMG_9808KAC SR-25 SureFire SOCOM Fitting to URX4 Rail Modification 07.05.21 copy.jpg
IMG_9813KAC SR-25 SureFire SOCOM Fitting to URX4 Rail Modification 07.05.21 copy.jpg
IMG_9814KAC SR-25 SureFire SOCOM Fitting to URX4 Rail Modification 07.05.21 copy.jpg

IMG_9832KAC SR-25 SureFire SOCOM Fitting to URX4 Rail Modification ALUMA-BLACK 07.06.21 copy.jpg

KAC SR25 URX4 Rail Part Numbers for Different Length MLok  copy.png


IMG_0181KAC SR-25 WITH SUPPRESSOR BLACK SCOPE & SLING RMR MOUNTED POOLSIDE 07.30.21 CROPPED copy.jpg
IMG_0167KAC SR-25 WITH SUPPRESSOR BLACK SCOPE & SLING RMR MOUNTED POOLSIDE 07.30.21 CROPPED copy.jpg
 
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Nice millwork but I’ll wait.
Perhaps a good clamp on will have to tide me over.
The Forward Controls Design RHF has a 12.8” version that looks good but I have time.
 
They lied to you. They still pop up on retailers frequently.
The truth is between you two. Retailers (and also distributors since I’ve seen non-dealer entities with two digit stock) are receiving their existing backorders. KAC hasn’t been taking new orders for a while now.