Daniel Defense MFR XS 10.0, M-Lok 01-107-09348


MFR XS 10.0, M-Lok 

Out of stock


MFR™XS 10.0 (M-LOK®) Rail

The MFR XS Rail Systems from Daniel Defense utilize the M-LOK attachment system for incredible weight savings as well as superior cooling, ergonomics, and modularity while maintaining the strength and durability expected from Daniel Defense. M-LOK attachment points are located along 7 positions on the rail and feature an uninterrupted 1913 Picatinny rail on top. Ambidextrous sling swivel attachment points are integrated into both the left and right side rails. Its sleek bolt-up system increases strength and reduces the overall diameter of the rail making it easier to control, all while utilizing a standard AR15 barrel nut. Anti-rotation tabs come standard for ease of installation and alignment. The MFR XS can be used with a pinned low-profile gas block on pistol, carbine, mid-length or rifle length gas systems.


  • Light Weight Free Floating Barrel Design
  • Steel Barrel Nut
  • Uninterrupted Mil-Spec 1913 Picatinny Upper Rail
  • M-Lok attachment at 7 different positions
  • Configurable Sling Swivel Attachment Points
  • Patented Bolt-Up Mounting System
  • Grade 8 Military Specification Fasteners


  • Material: Aircraft Grade 6061-T6 Aluminum
  • Finish: Military Specification Type III Hard Coat Anodized
  • Weight of Rail = 6.2 oz
  • Weight Installed = 8.4 oz (with Mounting Hardware)
  • Made in the USA!


– Rail Length: 10.30″
– Width: 1.56″
– Height: 1.995″
– Inside Diameter: 1.39″
– Weight 6.20 oz
– Barrel Nut: Steel (For Patented Bolt-Up System)
-Gas System Length: Carbine
– Free Float: Yes
– Continuous Upper Rail: Yes
– Integrated Sling Swivel Attachment Point: Yes
– Color: Black


Bolt-Up System Barrel Nut Wrench (Supplied)
Allen Wrench (Supplied)

All Daniel Defense products carry a 100% satisfaction guarantee against defects in original materials and workmanship. If your Daniel Defense product shows evidence of such defects, Daniel Defense will make every accommodation to fix, repair, or replace your product in the most expeditious manner possible. Daniel Defense does not warranty products or damage caused to our products by the correct or incorrect installation of other manufacturer’s products. Be sure to retain your sales slip as proof of purchase date when making a claim.


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