RailScales® est. 2014

XOS-H™ Type 1



*Sold as ONE Scale*

XOS-H™ 3 sided RaiScale offer twice the grip in the same mounting footprint and feature 45 degree wings and an accessory cutout. XOS-H™ acts a Hilt surrounding the accessory giving full 360 degrees of seamless integration. These new M-LOK and KeyMod grip scales tightly wrap your rail for one seamless grip area. The accessory cutout accommodates our Anchor® , Karve®, Karve-P®, RSB™ and additional future RailScales® products. XOS-H™ is sold individually and offered in two types to accommodate most of the popular handguard rail systems. *XOS-H™ will not fit every rail. Please read "Type Info" Tab to see if our rail grip will fit your AR-15 rail system.

Type 01 Fits:

  • PWS Mod 1/Mod 2 rails
  • Bootleg Inc. Rails
  • AAC Teardrop
  • Geissele 4 sided rails (haven't confirmed 7 sided yet)
  • 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

Type 02 (do to lack of demand Type 02 is postponed until Q4 2019)


  • Noveske NSR, NHR, NSRM
  • SMOS Arms 
  • KAC URX 4 Keymod/M-LOK
  • And many more
  • Width: 1.165"
  • Long: 3 M-LOK Slots/6 KeyMod Holes
  • Thickness: 0.125"
  • Weight: 0.6 oz Ea
  • Length: Long 4.7"
  • 416 stainless nuts

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