G10 XOS® in MLOK

(120 reviews) Write a Review

Product Overview

Now shipping with our new custom Torx T20 fasteners!

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 against 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:

  • AAC Teardrop
  • Bootleg Inc. CamLok
  • CMMG KeyMod/MLOK
  • Dakota Tactical HK Series KeyMod/MLOK
  • Daniel Defense Slim
  • Daniel Defense MFR MLOK - DOES NOT fit the MFR XL Rail.
  • Fortis Night Rail
  • Geissele 4-Sided Rails (Mk4, Mk8)
  • Geissele MK16 (URG-I)
  • HK Parts HK Rails
  • Hodge/FN Wedgelock
  • KNS Bren 805
  • Midwest SSK/SSM
  • Midwest G3KL/G3ML
  • Midwest Gen 2 Extended AK MLOK
  • Parker Mountain Machine Scar Bottom Rail
  • PWS Mod 1/Mod 2
  • Sig Sauer Canebrake SD 
  • Sig Sauer MCX-SPEAR LT - Only fits at 6 o'clock, DOES NOT fit at 3 or 9 o'clock. 
  • Sig Sauer MCX Virtus SD 
  • Vltor Freedom

Does not fit:

  • Brownells BRN-180
  • Daniel Defense RIS III 
  • KAC URX 4 KeyMod/MLOK
  • Noveske NSR, NHR, NSRM
  • Sig Sauer M400 MLOK/Tread
  • Sig Sauer MCX Rattler Non-SD
  • Sig Sauer MCX-SPEAR (308)
  • Sig Sauer MCX Virtus Non-SD
  • Black Rain Ordnance MLOK 

Ships Free and Made in USA

  • Colors: Black FR4, TerraCore™
  • 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


(120 reviews) Write a Review

120 Reviews Hide Reviews Show Reviews

  • 5

    Posted by David Hulgan on Sep 18th 2023

    Love the Black 4 Slot MiniDot Railscale. Worth the Money just make sure you Map out your Rail spacing before purchase :)

  • 5
    XOS panels

    Posted by KM on Sep 14th 2023

    These panels are awesome! Very high quality and very grippy. These do in fact work with the KAC urx4 just fine, not sure why railscales says they don’t. Maybe it was a mistake.

  • 5

    Posted by Craig Wilkinson on Aug 12th 2023

    These things are tough, sexy, lo-pro, and grippy as all get out. Well worth the money. Excellent accent on any high tier Gucci death squad rifle!

  • 5
    Great product

    Posted by Andre on Aug 9th 2023

    Was disappointed when I received the product I thought the description said 3 units in the package and when I received it there was. Only one panel I guess next time I will read the entire literature before I order other from that it’s an excellent product

  • 5
    Bad A$$

    Posted by Railscales Reviewer on Aug 5th 2023

    Great feeling and great quality. Feels great in the hand and protects from getting hot and since they are g10 they don't melt like other plastic covers

  • 5
    Money well spent!

    Posted by Harold Lester on Jul 30th 2023

    I need high quality- check I need high precision - check I need good value - check I need good customer service - check I need it at reasonable cost - check TEAM RAILSCALES GETS 5 STARS!

  • 5
    Love it

    Posted by James Johns on Jul 3rd 2023

    The way they wrap around the handguard is perfect

  • 5
    They love me

    Posted by Joe Wasmund on Jun 30th 2023

    This was my first purchase ever and I am super impressed. I got them in the dragon pattern and the grip is phenomenal. The hardware is quality, and the general product feels sturdy. Pattern was uniform all through, with no blemishes. If you're looking at these, you know exactly what you're hoping for. A unique look with performance that delivers. These have it. I did tell Railscales themselves that I loved them in my order and they said it back so if you have some loneliness in your life, they are here for you

  • 5

    Posted by Brandon on May 26th 2023

    These rail covers are well made, great quality and texture. Fitment was perfect on my griffin armament hand guard, no play side to side or up and down before tightening the m-lok fasteners. Look forward to doing business again, thanks.