G10 XOS™ in MLOK

(95 reviews) Write a Review

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 135º “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. CNC machined out of high quality US made Black FR4 or our brown terrian colored TerraCore™ (commonly known as G10), our scales provide an unmatched barrier agianst heat transfer. Available in four 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

TerraCore™ complements our line of Terra Bronze™ anodized and FDE polymer components as well as third-party branded tan anodized or Cerakoted rail forends. Unlike coating or painting options, our TerraCore™ scales are colored throughout and remain so after CNC machining operations. Offered in the same patented textures and resilient heat protection options you've come to expect. We are excited to introduce TerraCore™ XOS scales to our lineup.

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/MLOK
  • Dakota Tactical HK Series KeyMod/MLOK
  • 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
  • KDG MREX SCAR Rail fits 6 o'clock, DOES NOT fit 3 or 9 o'clock.

Does not fit:

  • Noveske NSR, NHR, NSRM
  • SMOS Arms
  • KAC URX 4 KeyMod/MLOK
  • Sig M400 MLOK/Tread rail

Ships Free and Made in USA

  • Color: Black FR4
  • Offered in 3 or 4 MLOK Slots
  • Width: 1.165"
  • Thickness: 0.125"
  • Weight: 0.6 oz each w/ hardware
  • Length: 3 Slot - 4.724" 4 Slot 6.300"
  • 416 stainless nuts


(95 reviews) Write a Review

95 Reviews Hide Reviews Show Reviews

  • 5
    Raliscals XOS Honeycomb -Exactly what I needed

    Posted by Michael Gold on Sep 18th 2022

    Needed lightweight heat resistant scales and this is absolutely perfect! Easy MLOK install, solid scales, super lightweight, awesome texture! 5 stars!

  • 5

    Posted by Username on Sep 15th 2022

    Got 3 of these bad boys to mount, god they are expensive. Period. But, if you are running a platform where compromises can't be made and you want to keep a grip on your rifle this is the one to get. Mud was not an issue, haven't tested against winter yet but does well in the bottom of a pond and big situation.

  • 5
    Great for hot guns

    Posted by Dustin on Sep 6th 2022

    This railscale is perfect for keeping your hand off a hot handguard and also keep a tight grip while switching hand positions and transitions. Wish it was cheaper but worth the price.

  • 5
    Saved the day

    Posted by Antone Barnes on Aug 31st 2022

    Absolutely perfect. Perfect pair of aesthetics and functionality.

  • 5
    Very nice

    Posted by Nick M. on Aug 21st 2022

    Though they are super pricey, the do their job very well. Very good grip. Was on the fence about purchasing but decided it was worth it for at least one of my rifles :) definitely a good choice

  • 5
    G10 scales

    Posted by Austin on Aug 20th 2022

    Super satisfying tight tolerance. Litteraly clicks into the mlok. Texture is as expected for machined g10. Biggest issue you'll find with them is their "in stock" status

  • 5
    Dragon scales

    Posted by Adam on Aug 17th 2022

    Love these scales, they have a solid feel, and great texture. Wish they made a pic rail cover with the same textures.

  • 5
    Rail scales

    Posted by Robert Manning on Aug 10th 2022

    Great product excellent customer service!

  • 5

    Posted by DIEGO on Aug 5th 2022

    Well made, perfect fit, very cool wrap-round, amazing grip texture. I’m now an even bigger fan of railscales.