(33 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
  • 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/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


(33 reviews) Write a Review

33 Reviews Hide Reviews Show Reviews

  • 5
    Great product

    Posted by Zach on Jul 1st 2020

    I ordered the XOS Matrix 4 slot. It arrived extremely quickly and was very easy to install.

    I had a pic rail on the forend of my M1A and it was obtrusive and uncomfortable. I came across these the other day and knew they would work great. The rifle sits in my support hand much more naturally with the XOS in place of the rail. The texture is adequate, but not abrasive to your hand. The mounting process I used was not average since my chassis system is set up for Picatinny. I had to make a trip to the hardware store to grab some 8-32 thread T-Nuts that matched the supplied m-lok machine screws. I loaded my rifle up on the drill press and punched the Picatinny mount holes out so that the T-nuts fit snugly into the stock. At that point I simply used the supplied screws and mounted the piece snugly to the stock.

    I will watch the setup as I shoot the rifle. I might need to epoxy the T-nuts to the stock if it loosens any at all. I’m not overly worried though.

    I will definitely recommend these to my friends. I like the sleek look they give my rifle. The days of huge quad rails with garbage everywhere are long gone. I’m glad I found a way to cover unused rail space.

    Thanks for reading, I hope this helps someone.

  • 5
    Matrix grips

    Posted by Brent Bledsoe on Jun 25th 2020

    I really like the grips a lot, I feel like they are kind of pricey for the amount of material that you receive but overall very pleased w this product.

  • 5

    Posted by Sir Erik The Wise on Jun 17th 2020

    Use these on my BCM. They keep my hand safe while the rifle builds up heat. Provide very good grip too. Pretty much everything you need while adding a badass look.

  • 5

    Posted by Chris on Jun 13th 2020

    Awesome product! Fit and finish is excellent, fits my DDM4v7 handgaurd perfectly. I'm a product developer by trade and highly recommend this product to anyone looking for a quality rail solution.

  • 5
    XOS Rail Covers ROCK!

    Posted by Long Nguyen on Jun 2nd 2020

    Just put a couple 3 slot XOS covers on my POF 12.5” and could not be happier. These exceeded my expectations as they now allow me to have a broader footprint for my grip. The mini dot pattern is just the right amount of texture too. Worth every penny!

  • 5
    Rail scales

    Posted by Tony on May 25th 2020

    Very good product and very well made. It is a quality product that hits right to your rail and is not bulky and is very light. They also provide excellent texture for grip. Two thumbs up!

  • 5
    Great addition to the bottom

    Posted by Tony Pec on May 25th 2020

    These work perfectly for the bottom of rails. Paired this up with two 2-slot G10 scales and it feels fantastic every time I pick up my rifle. I like how much more real estate the xos takes up, yet it's still slick and provides superb heat protection.

  • 3
    QC issues between the 4" and 3" minidot railscales?

    Posted by Phillip on May 23rd 2020

    The railscales feel nice. However there is a difference in how the 3" and 4" minidot scales look. I purchased three of the 3" scales and two of the 4". The 4" scales have more surface texture and are not as dark as the 3" rails. They charge a lot of money for these things and in my opinion they should all look identical.

  • 5

    Posted by Jared Munoa on May 21st 2020

    In terms of heat resistance and durability you’ve got an incredible product,. Then add the perfect texture for a secure grip no matter how slippery your hands might be; makes these products got a game changer. MF’n minidots all day!