I will check when I get home, but i think you are correct.
I really like the looks of this. Would love to see it in action or handle it.
Yeah me too. I would like to buy a KAC URX 3.1 but its out of my price range and i hear the wrench to install it is expensive as well. If this is a more affordable option with the added bonus of taking readily accessible magpul parts i think it’ll be great. The only thing holding me back is that there is very little user feedback so far (not necessarily a deal breaker since i havent heard any negative feedback either) and that you can get a proven rail system like a troy unit for the same price or less.
I just ordered one. I’ve been eyeballing them at PSA’s site for a while, and with the barrel/handguard deal they have going, I couldn’t say no.
All I need for the rest of the build now is a decent trigger and a gas block and gas tube.
What is the barrel/handguard deal? I checked their site but didnt see it.
No slots on the PSA so I am sure it is heavier but cannot imagine by much. I don’t see a need for accessories there, but if you do I would go with the Parallax.
Look on their facebook “store”. No photo for it, but they offer barrel and handguard together.
10 4 thanks
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I’m glad to see support from the horse’s mouth.
How does one sign up as a stocking dealer?
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I love the rail and will be picking up another at PSA next saturday.
I am installing one.
Need a barrel shim kit.
Installed one of these the other night. Went on fine. It’s a very nice rail, I wish they made an 11" one for my SBR.
I installed a Parallax Tactical Rail 13" rail and a 16" Daniel Defense lightweight barrel on a friend’s rifle. Essentially, we built the upper.
The Parallax tacitcal barrel nut required a spikes tactical shim kit to align properly.
The barrel nut aligned properly with the proper shims and the rail slipped over the low profile gas block and was attached to the barrel nut with 6 bolts.

This is the final configuration for this rifle with the Primary Arms 1-4x on a Primary Arms Mount as the Optic.
My intial thoughts:
- It isn’t too heavy. The rail feels relatively light compared to the old rails that I have installed in the past.
- The profile feels great in the hand. Its slim enough that you can get a good grip.
- The rail isn’t KeyMod compatible so I don’t see this as a truly modular design
- the price is right.
- The mounting system: I don’t think it is nearly as solid as the Daniel Defense DD Lite rail system, but it is lower profile.
- Installation: It was pretty simple to install. There are no gas tube holes to line up. The hardest part is getting the correct alignment with the barrel nut to allow the top rail to line up even with the upper receiver rail.
The following image is from Weapon Outfitters:

We will be shooting the rifle next week. I will add some more to this review.

Here is a photo of the intial zero group.
Took the rifle to the impact zone on Friday. My friend zeroed the rifle at 100yards.
The optic has about a 1ish MOA dot and was set at 4x.
We had a 1/2 value wind gusting to 10-12mph from the left rear.
Federal XM198 55gr ball was used.
The initial 5 shot group was 4.68" or MOA with two flyers.
the best 3 shot were a little over 1".[/quote]
We ran out of time and with the wind blowing we reached the point of diminishing returns for determing the potential for this rifle, optic and ammo.
How about some pictures of the rifle.
Just a quick “FYI” note. The barrel nut of the PXT rail is machined with 1-1/8-inch flats, necessitating the use of a crow’s foot wrench. The flats are machined precisely 0.500-inch wide. The 1-1/8-inch crow’s foot wrench I ordered is 0.6125 wide. The thickness of the wrench was something I’d never even considered. D’oh!

Time to break out the grinder.
I was going to chuck it up in the Bridgeport and mill off 1/8-inch, but then I remembered I don’t have a Bridgeport. :lol:
The 4.5" Ryobi angle grinder will have to do.