RailScales® est. 2014

XOS™ Type 1



*Sold as ONE Scale*

New for 2018, our XOS™ 3 sided RailScales offer twice the grip in the same mounting footprint and feature 45 degree wings. These new M-LOK and KeyMod grip scales tightly wrap your rail for one seamless grip area. XOS™ is sold individually and offered in two types to accommodate most of the popular handguard rail systems. *XOS™ will not fit every rail. THESE PANELS WILL NOT WORK WITH SIG MCX RAILS. Please read "Type Info" Tab to see if our rail grip will fit your AR 15’s 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 Fits:

  • Noveske NSR, NHR, NSRM
  • SMOS Arms 
  • KAC URX 4 Keymod/M-LOK
  • And many more
  • Short: 2 M-LOK Slots/3 KeyMod Holes
  • Long: 3 M-LOK Slots/6 KeyMod Holes
  • Width: 1.165"
  • Thickness: 0.125"
  • Weight: 0.6 oz Ea
  • Length: Long 4.7" / Short 3.2"
  • 416 stainless nuts

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