(18 reviews) Write a Review
$58.00 - $72.00

Product Overview

XOS™ in MLOK - An evolution of our traditional G10 machined RailScales®, XOS™ Scales are a 3-sided solution that offer twice as much grip surface in the same mounting footprint. Adding a 45 degree “wing” on each side of the panel allows for the XOS™ to tightly wrap your rail, and provides one seamless grip area for unparalleled handling and heat protection. Available in three popular textures and varying lengths, these scales allow for multiple setups no matter how much rail space you have available. They will accommodate most popular handguard rail systems, however please check the specs below to insure these will fit yours. Sold Individually

Fitment Info: Fits Rails with mounting flats of 0.678" or narrower including the following.

  • PWS Mod 1/Mod 2 rails
  • Bootleg Inc. Rails
  • AAC Teardrop
  • Geissele 4 sided rails
  • Geissele MK16
  • Daniel Defense Slim Rail
  • Midwest SSK/SSM
  • Midwest G3KL/G3ML
  • CMMG Rails Keymod/M-LOK
  • Dakota Tactical HK Series Keymod/M-LOK
  • Vltor Freedom Rail
  • Parker Mountain Machine Scar Rails
  • KNS Bren 805 Rails
  • HK Parts HK Rails
  • SIG MCX Suppressor Compatible Rail
  • Fortis Night Rail
  • Hodge/FN Wedgelock

Does not fit:

  • Noveske NSR, NHR, NSRM
  • SMOS Arms
  • KAC URX 4 Keymod/M-LOK

Ships Free and Made in USA

  • Offered in 3 or 4 MLOK Slots
  • Width: 1.165"
  • Thickness: 0.125"
  • Weight: 0.6 oz Ea
  • Length: 3 Slot - 4.7"
  • 416 stainless nuts


(18 reviews) Write a Review

18 Reviews Hide Reviews Show Reviews

  • 5
    Best You Can Get!

    Posted by Trevor Conger on Mar 23rd 2020

    To be honest, the price of the railscales made me hesitant to purchase them. But since I have a very nice AR build, I did not want to throw some cheap alternative product on it. After putting them on and giving them a test, I can honestly say this is a great product! I would definitely recommend the XOS and the Karve for your guns! They provide excellent heat resistance and great stability. Overall, they make some great products and the employees are very helpful!

  • 5

    Posted by Erick Rittle (IG HANDLE : bleed_rwnb_1776) on Feb 17th 2020

    This near full wrap profile is beefy yet super functional. The light weight material is like air and the full purchase you get is impressive...a great look and different cosmetic & functional options offered other than the traditional scales. VERY HAPPY!

  • 5
    Very happy with XOS scales

    Posted by Joseph Maddox on Feb 2nd 2020

    Was very satisfied with XOS scales and its texture. I got them in Matrix pattern and was surprised at just how much traction they provide. The contour is perfect for the handguard on my DDM4V7.

  • 5
    Best Rail Covers available period!

    Posted by Mickey Blackmon on Dec 4th 2019

    I have wasted a lot of money on rail covers but so learn from my mistake "Buy once, cry once"! Best Rail covers in the Wild.

  • 4
    Great rail guards for MLOK & Keymod!

    Posted by Russ M. on Nov 26th 2019

    I have these on 4 different ARs in both keymod and Mlok. There really isn't anything better out there and the price reflects it. I will use these on two future builds at least. The only other thing that compares are ones made from titanium and those take forever to get, plus they're just as costly, if not more, since these cover a lot more. I have some Ti grips and they're not as functional. Railscales go on my competition and self defense pieces. Flat bottoms help for mounting, but note the three sided scales will not fit well on some round handguards, like on a curved carbon fiber tube. The thin scales are better for those, applications, but still might be a little "flat". There's ways to get the fit right.

  • 5
    XOS Mini Dot

    Posted by Evan on Nov 9th 2019

    Nothing compares in quality and looks! My second set and always satisfied!

  • 5
    Form Fitting, Low Profile, Amazing Grip

    Posted by Benjamin Londrillo on Sep 30th 2019

    Was looking for something that not only worked great, but integrated seamlessly with my rail with a low profile. I also didn't want to put an ugly guard on my expensive rail and build that I worked so hard to make perfect. These grips were exactly what I was looking for. Offer great ergonomics, aesthetics, and hand protection all while improving the overall look of my build. Super lightweight, durable, and just plain sexy. Fit my BAD Rigidrail like a glove. People ask me where I got them often. Highly recommended

  • 5

    Posted by Chris Jacobs on Sep 19th 2019

    Put 1 long and 2 short mini dot XOS type 1 on a BCM MLOK rail. Even better than I expected. The fit and finish is fantastic, and feel great to the hand. Now I want them on all my rifles! Yes, they are expensive, but you get what you pay for.

  • 5
    Like it grew there

    Posted by Jack McClane on Sep 19th 2019

    I got the short Honeycomb piece for my PTR 9CT M-lok handguard. Sits perfectly behind my Arisaka finger stop and feels organic to the weapon. It’s not gonna tear up any gloves, but it’s gonna provide a good grip to pull it into my shoulder.