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HTP® XOS-H® in MLOK

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Product Overview

Sold Individually

HTP® XOS-H® in M-LOK - New for Fall 2023 - Now offering a High Temp Polymer (HTP) injection molded version of our G10 machined XOS-H RailScales. HTP XOS-H scales are a 3-sided solution that provide more than twice as much grip surface in a similar mounting footprint to our traditional HTP Scales. Adding a 135º wing on each side of the panel allows for the HTP XOS to tightly wrap your rail, and provides one seamless grip area for unparalleled handling and heat protection. This variation of our traditional G10 XOS Scales offer the same great features, but add an accessory cutout that partners seamlessly with other RailScales products to give you multiple modular options that best fit your shooting style. While most commonly used at the 6 o’clock position with our Karve, Karve-P, Anchor, or RSB, the XOS-H will also fit our QDX sling mount as well as additional future RailScales products to mount at various positions based on use. They are available in 4 popular industry colors: Black, Flat Dark Earth, Sniper Grey and OD Green. These are sold individually, and will allow you to outfit your firearm with even more added texture, grip and heat protection at a reduced cost. These will accommodate most popular M-LOK handguard rail systems, however please check the specs below to insure these will fit yours.

New HTP IR Material (NIR): Our HTP scales are heat stabilized and utilize 50% long glass fiber for high strength and and high rigidity properties. High HDT of 500º due to crystalline properties and glass loading. This also makes the HTP scales very isotropic to minimize warpage, the material is even suitable as a substitute for die cast metal parts. The new HTP XOS-H scales also feature a new Near-Infrared compliant upgrade to our material (NIR). The HTP NIR material was originally formulated for a recent military contract and we decided to carry it over to our commercial line of products as well. The IR additive absorbs Short Wave IR radiation (non-visible light), yet prevents the emission of longer wave IR radiation (visible light).  These properties make the material they are added to virtually invisible when viewed using night vision / FLIR equipment. Look for the “NIR” marking on the back of our HTP line. The new HTP NIR will be coming to the rest of our HTP product line by the end of 2024.

The XOS-H cutout slot is compatible with these RailScales products.

The XOS-H cutout slot is compatible with SureFire Scout Light Pro lights (w/ M-LOK mount) with end-user modification. Send an email to fitment@railscales.us for modification instructions. 

Ships Free and Made in USA

  • Quantity: Sold Individually
  • Mount Type: M-LOK
  • Footprint: 3.5-Slots
  • Length: 5.520"
  • Width: 1.150"
  • Thickness: 0.125"
  • Weight: 0.55oz w/ hardware
  • Material: HTP® NIR™ (Injection Molded Glass Filled High Temp Polymer)
  • Color: Black, FDE Tan, Sniper Grey, OD Green
  • Hardware: US Made 416 Stainless M-LOK Nuts
  • Fastener: US Made T20 Torx Fasteners w/ Nylon Thread Patch

Fitment Info - Fits rails with mounting flats of 0.678" or narrower including the following:

  • ADM MLOK
  • BCM MCMR
  • Bootleg Inc. CamLok
  • CMMG MLOK
  • Dakota Tactical HK Series 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
  • LMT MRP-L MLOK
  • 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-SURG SD Rail - Only fits at 3 & 9 o'clock positions, DOES NOT fit at 6 o'clock position. 
  • Sig Sauer MCX-SURG Low-Profile Rail - Only fits at 6 o'clock, DOES NOT fit at 3 or 9 o'clock.
  • Sig Sauer MCX Virtus SD 
  • SLR AK ION
  • Vltor Freedom

Does not fit:

  • Brownells BRN-180
  • Black Rain Ordnance MLOK
  • Daniel Defense RIS III 
  • Geissele MK18 MLOK
  • KAC URX 4 MLOK
  • KDG MREX SCAR Rails
  • Larue 2.0 Stealth MLOK 
  • Noveske NSR, NHR, NSRM
  • Radian Model 1
  • Radical Firearms MLOK 
  • Sig Sauer M400 MLOK/Tread
  • Sig Sauer M400 X-Series SDI
  • Sig Sauer MCX Rattler Non-SD
  • Sig Sauer MCX-SPEAR (308)
  • Sig Sauer MCX-SPEAR LT SD Rail
  • Sig Sauer MCX Virtus Non-SD
  • Sig Sauer MPX Factory 4" & 8" MLOK Rail
  • SMOS Arms GFY MLOK
  • SOLGW Wedge Lock MLOK
  • SOLGW M89/L89 MLOK
  • TriArc TriLok MLOK 

 

 

© 2024 RailScales, LLC. All Rights Reserved. RailScales®, HTP®, XOS®, XOS-H®,  XOS-W™, HTP NIR™ are registered trademarks of RailScales LLC.

For all patents and trademarks, see www.railscalesip.com

Reviews

(10 reviews) Write a Review

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  • 5
    Htp scales

    Posted by Dylan on Dec 2nd 2024

    I love these things they are great fit really well look great an feel even better now I just have to get a forgrip an my spear will be perfect lol

  • 5
    Railscales XOS-H

    Posted by Humberto Checa on Sep 22nd 2024

    Color matches my Daniel Defense perfect!

  • 5
    Perfect quality

    Posted by Colten on Sep 11th 2024

    You just have to get this it you acquire a forward grip also, it fits so perfectly and adds to the fit and quality to the rest of the product line.

  • 5
    Excellent

    Posted by David on Aug 28th 2024

    Excellent quality and superb addition to my hanguard. Will be a buyer for life.

  • 5
    I’m in Love

    Posted by Jason Helper on Aug 22nd 2024

    XOS hugs the bottoms of my rails, got them on all SBR’s, I use the Carve and the RSB vertical grip on different guns. You and turn it which ever way you want and the open slot fits the hand stop and Vertical grip

  • 5
    Quality, fitment

    Posted by Matthew on Jul 1st 2024

    I did a lot of reserach and measuring after much consideration due to my specific rail not being included in the compatibility list and I can now say these fit and look absolutely stunning on an Aero Atlas S-1 rail. The fitment is literally perfect. There are no gaps for heat to slip through and they are nice and slim. I can still wrap my whole hand around the rail until my fingers touch and that with a driven arms AMS surefire pressure pad mount installed too! Incredible product. I'd slap 6 stars on there if I could. Thanks railscales, this is my favorite part of my latest project.

  • 5
    Htp rails

    Posted by Cody on Jun 21st 2024

    Fit and finish is absolutely perfect ? These things look and feel fantastic!

  • 5
    Best rail covers out there

    Posted by Alex M on Mar 2nd 2024

    These are probably hands down the best rail covers I’ve bought. I do think they are pricier side but their quality definitely beats out everybody’s. Already have 3 of my AR’s decked out with them.

  • 5
    HTP XOS-H mlok

    Posted by Jeremy on Jan 31st 2024

    Great fit and finish the mlok screws have thread locker on them make sure you read the directions you can over TQ them and can crack.