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MREX MkII 4.25 – FDE


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The Legendary MREX, upgraded to the MkII, has served the shooting and special operations community since 2014. The MkII is offered in three different lengths: 6.5, 4.25, and 2.2 inches, signifying the length the MREX MkII extends beyond the SCAR receiver. The MkII features MLOK on all sides on the rail, a flat bottom and virtually no addition in weight while allowing for more mounting options and a smoother, more ergonomic grip. This super durable rail maintains zero for electronic optics and is 100% made in the USA. All versions of the MREX MkII are available in anodized Type III Hardcoat black or an FDE cerakote. The premium upgrade to any SCAR.


  • Overall Length:11.08 in
  • Weight: 7 oz (+ 1.1 oz) 
  • Finish: Cerakote
  • Material: 6061 T6 aircraft grade aluminum 
  • Compatibility: FN Scar16 & Scar17 models 


  • Rail
  • Pre-installed bridge
  • Hardware Kit
  • Sticker
  • QR Code to installation instructions


For More Information about the MREX Click Here: MREX Past Present and Future – Kinetic Development Group LLC (

For Install Video Click Here: Show and Tell Tuesdays | KINETIC

Additional information

Weight 5 oz