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Due to Measure 114, Rainier Arms will prioritize order shipments to Oregon state residents.

Rainier Arms AR-15 Urban Combat M-Lok Handguard - 4.25"

AR-15 Handguard

Out of stock

Rainier Arms AR-15 Urban Combat M-Lok Handguard - 4.25"


Rainier Arms Urban Combat Rail features MLOK slots at the 3,6 & 9 o'clock positions for adding user defined rail sections. Anti-Rotate QD sockets are provided on each end of rail at the 3 o'clock & 9 o'clock positions.


  • Rail- 6000 series extruded Aluminum Milspec Type 3 Class 2 Hard Black anodized
  • Barrel Nut- 7075 Aluminum  Type 3 Class 2 Hard Anodized
  • 17-4PH  Cored Stainless Steel Rail mounting attachment- Patent Pending
  • Anti rotate tabs time Rail to upper receiver
  • No Barrel nut shims required for installation
  • Does not contact or apply side loads to gas tube
  • Inner Diameter of handguard - 1.315"
  • MLOK Slots at the 3, 6 and 9 o'clock positions
  • Includes barrel nut wrench
  • Barrel Nut diameter- 1.378"
  • Compatible with most known low profile gas blocks
  • 5.6 oz. -Total weight including mounting hardware
  • Made & Assembled in USA
More Information
Product Type AR-15 Handguard
Manufacturer Rainier Arms, LLC
Rail Length 4.25"
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