REV Arms Lightweight Rail and Guaranteed Sub MOA ARs

I came across REV Arms at a local gun show. They claim to have the lightest 15″ aluminum rail on the market.


The RAL15 weighs in at 9.8 oz and that is including the barrel nut and hardware. You can get this rail for $225 on their website. They also offer this rail in 13″ down to 9″. The 9″ rail is a mere 7 oz.



This light weight AR weighs in at a mere 5.5 lbs.



REV Arms also has a low mass BCG, but it is not on their website.



REV Arms is not just about light weight accessories. They also make accurate barrels that are guaranteed for life. That guarantee is based on its accuracy. Every rifle barrel is guaranteed sub MOA for life.

What makes REV-Arms barrels so accurate? The secret is Single Edge Land Rifling. First and foremost, our barrel blanks are straighter than any other blank we have seen with average run-out of less than 0.0005 per inch. The blanks are then button rifled using a Hybrid Cut/Polygonal Rifling This process uses a 90 degree shoulder and one polygonal side. Our barrels are made from 4150V and Black Nitrided inside and out as well as the extension.

Unlike Polygonal Rifling, Single Edge Land Rifling does not compress the projectile to stabilize it in flight. Instead, it engraves the projectile. The primary function of this innovation is to provide for improved rifling of the gun barrel, which has a single edge area and a polygonal area separating the grooves. In essence, it is a combination of standard and polygonal rifling. This hybrid reduces any substantial deformation of the bullet due to its minimal engraving. It allows the bullet to move more symmetrically along the barrel, enabling a straighter line towards the target. Furthermore, the tighter seal of the projectile reduces forward escaping gases, and therefore, minimal loss of gas pressures. Ultimately, this design has the capabilities of shooting match grade ammunition at sub 0.5 MOA accuracy. We have field tested these barrels and all are achieving sub 0.5” groups with factory ammo. So far our best 3-shot group at 100 yards is 0.15.” Most people cannot fathom that level of accuracy out of a standard AR platform.


In conclusion, where else can you find a SUB MOA Guarantee from an AR without spending a fortune for a custom rifle? Oh, and if the SUB MOA Guarantee isn’t good enough for you, we even offer a no hassle LIFETIME warranty on every barrel. That’s right, if you somehow manage to shoot it out, we’ll replace it at no cost. Now that you’re done asking why REV-Arms, click here to place an order.


At the show they also had their 3Gun Muzzle Brake for sale for $95.

The holes are to compensate for right handed shooters. This helps with the 2 o’clock muzzle rise.

IMG_6920 IMG_6921


For more information, check out their website.

Nicholas C

Co-Founder of KRISSTALK forums, an owner’s support group and all things KRISS Vector related. Nick found his passion through competitive shooting while living in NY. He participates in USPSA and 3Gun. He loves all things that shoots and flashlights. Really really bright flashlights.

Any questions please email him at


  • Edeco

    “where else can you find a SUB MOA Guarantee from an AR
    without spending a fortune for a custom rifle?”

    Stag 😛

    The rifling sounds interesting tho.

    • Nicholas Chen

      Not quite. I dont see anywhere on their website that warranties the accuracy.

      They do warranty the rifle for life and if the barrel is shot out they will replace it. But nothing about that guarantees SUB MOA.

      • sean

        Its Stag Arms model 3 and has a 1/2moa guarantee…but lets all remember what Tommy Boy said about a guarantee on a box.

      • Treyh007

        I’m almost positive stag guaranties 1MOA groups at 100 yards…… Don’t think it’s “Sub MOA”.

      • Edeco

        The Model 6 there, chum.

  • Rick5555

    Wonder how the barrel would perform using a 60 degree land…which is used in 5R rifling barrels. Maybe, Rev can try a 60 degree land and polygonal. Will admit the claim of sub-moa and lifetime warranty has me intrigued. I will have to try one of these barrels out. And conduct my own independent testing.

  • Sianmink

    Ooh. slightly lighter than the Midwest lightweight handguards, A little more expensive though.
    Tough call.

  • whskee

    Met some of their people at a show in VA too. Seemed like a good bunch, the booth guys actually knew their stuff unlike 90% of the others at that show.

    • REV Arms

      Hey all, I just came across this review and thought I would chime in. My name is Gregory Littlefield, CEO of REV Arms and I appreciate the post. We do offer a SUB MOA Guarantee on our Single Edge Land barrels as well as a lifetime Guarantee. Being a child of the 90s, Tommy Boy is one of my all time favorite movies and I agree with you. That’s why we put it on the Internet, not just a box, for all to see. We spent this week with Army, Marine, and Navy snipers pushing our barrels to 800 and 1000 yards using 55, 62, 69, 75, and 77 grain ammo. To say they were impressed is an understatement. We had hits at 1000 yards with each. I also agree that 3 shot groups are not the benchmark for accuracy. Most of the pics on the site are from our customers. We believe we are producing the most accurate AR Barrel on the market would love to get one in your hands.

      • REV Arms

        And just in case someone asks for proof of our hits at 1000 yards here is a pic.

  • TheSmellofNapalm

    Cool looking dimpled buttstock

    • Dracon1201

      Battle Arms Development

  • Jsim

    Do they sell full rifles because I don’t see any on their website

  • Steve Milliron

    The BCM KMR 15″ is 8.1oz w/ hardware, and V7 makes a titanium barrel nut for it, which drops the weight down even further. It’s made of an aluminum-magnesium alloy, though. Their aluminum vesion, the KMR Alpha, is only 0.5oz heavier than this REV rail, but it’s got keymod slots all the way around, and it’s much more comfortable. Just my $0.02

    • Sam

      Article says it’s the lightest aluminum rail. The original KMR isn’t only aluminum as you stated. And I’m sure you could get some carbon fiber rails that are even lighter.

  • Andrew Tuohy

    Three shot groups are BS and so is any company that makes claims based on them.