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Geissele MK8 Rail vs KAC URX ?

A big thing about Knight’s is that they have always been a Special Operations Forces and military responsive contractor who immediately reacts to time-sensitive demands from those types of customers. As the word spread from the 1980s to early 1990s, they added design, testing, and manufacturing capacity to meet their growing list of customers.

Think early rail attachments, handguards, flashlight mounts, vertical grips, optic mounts for SMGs, Carbines, Sniper Systems, Machineguns, unique Night Vision systems attachment solutions for all of these types of weapons, suppressors, LAM mounts, sling mounts, and anything basically that end-users come to them with asking for KAC to rapidly develop and make.

Because of the ever-changing nature of weapons, night vision, LAMs, flashlights, and ancillary systems, these things go from being the new hotness one day, to obsolete the next year.

Think about everything we went through with the PVS-4, PVS-10, SIMRAD, Thermal Weapon Sights, PVS-14s, and then Clip-Ons just for weapon-mounted NVDs.

Handguards went from repurposed SR-25 carbon fiber tubes with AR-15 upper receiver thread interface parts, to the KAC RIS, RAS, FF RAS, MRE, and URX series. That covers 1993-present.

Then look at PAQ-4C, PEQ-2A, PEQ-15, and subsequent LAMs, all the MP5 rails for customers all over the world, MP5 optic mounts, 870 Master Keys, and a list of things even the most-dedicated clone builders have never seen, and will never see.

Suppressors, complete weapons contracts, ever-changing scope mounts, and new clip-ons require constant feedback and response from KAC to that customer base. These aren’t just US SOF and DoD contracts either, from what I understand. The customer base is quite large and well-funded, with very fast solicitation and fulfillment schedules that are unique to KAC.

While it isn’t realistic to expect them to also be responsive to the civilian market, Trey recently said they really want to expand more in that space, so we’ll see.
I own an sr15 an sr25 and a suppressor. You can stop sucking kacs nuts now. They havent been relevant for a long time in the civilian market, and its absolutely not due to "rapid market changes". Hell, they arent even very relevant in the mil world any more. And having met reed and his drunk son several times... that downturn couldnt have happened to a better company
 
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having met reed and his drunk son several times... that downturn couldnt have happened to a better company
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This is beginning to feel a lot like the LMT (I say this as an lmt owner) dogshit QC being "okay because they manufacture for mil/leo and they're okay with it, it's a tool, be man!" argument...for a $3k+ rifle that is absolutely a luxury purchase.
They definitely damaged the brand name. They should have slowed production and maintained quality.
 
So.... the thread progresses from a debate about handguards to KAC-bashing, then ultimately doxing (or at least publicly going Karen on) Trey Knight....looks like he needs to mend his ways, sure, but public humiliation is over-rated, IMO.
 
So.... the thread progresses from a debate about handguards to KAC-bashing, then ultimately doxing (or at least publicly going Karen on) Trey Knight....looks like he needs to mend his ways, sure, but public humiliation is over-rated, IMO.
Eh that was on Reddit, chill.
 
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The cross section is strong, but doesn’t lend itself to comfort.
I have a KAC URX 3.1, a newer M-LOK & a Keymod version, but overall I like the Geiselle rails better. But the URX is very strong, & unsurpassed for attachment strength to the upper receiver.

The MK-8 is too fat for my preference, but I've used several of the MK-14's & I like them a lot.............has a good barrel nut system.

The WOA rails are strong with a good barrel nut as well, but limited length options; the SLR Ion Lite rail is highly underrated too, with a good, long barrel nut also.

MM
 
Well the newer URX rails are one piece so there aren’t any little set screws and stuff like that. It’s too bad kac doesn’t produce them in quantity or license them to someone who would.
Comparing my URX4s to other current handguards like the Geissele Mk16 or Zev/Triarc wedgelocks that have sizeable barrel nuts with firm lockup, I can’t really tell any difference in attachment strength to the receiver. They’re all rock solid. The wedgelocks are particularly solid. Their biggest downside is how small their ID is and absolutely no mlok attachments should be put next to the gas block.

Hell, the BCM QRF also has an incredibly strong lockup to the receiver too, with a smaller barrel nut.

I will admit the URX4s look awesome though, and I like how they feel, how much ID they have for both attachments and airflow, and that they’re 7075. But I did find I like the OD size of the Mk16 as a happy medium between the URX4s and the Wedgelocks.
 
I will admit the URX4s look awesome though, and I like how they feel, how much ID they have for both attachments and airflow, and that they’re 7075.
KAC wouldn't say they’re 7075 last time I asked. Some generic “the alloy chosen is sufficient to meet the requirements” or something was as good as I got.
 
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Aside from the USSS contract, some foreign M110 orders, and the USMC suppressor contract, I’m mystified as to what KAC has been doing post-GWOT pre-L403A1.
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Not to mention alot of their customers you have no idea who they are and they don't publicize. Their compound is the size of a small city. They have the biggest private tank collection in the world. They have a Mclaren dealership on property.

I personally think KAC is limited by workers on what they can produce. They are right smack dab in middle of the space race near Cape Canaveral with the likes of Space X, NASA, Blue Origin, Orbital, NG and many others competing for limited labor in that area. There are only so many machinists, button pushers, engineers and assembly people in that area.

I have been to the compound, its freaking impressive.

Once KAC started getting popular by the chads and dicksucks who dont even shoot, I started punching out. I was a huge KAC collector back when only shooters knew what was up. Sold a bunch of KAC gear and guns for 10x what I paid for it. Still holding on to a few things that I will never sell, but you can buy way better gear for way less money today than the stuff KAC puts out.
 
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KAC wouldn't say they’re 7075 last time I asked. Some generic “the alloy chosen is sufficient to meet the requirements” or something was as good as I got.
Huh, now I’m trying to remember where I read it.