URX II Rail M203 Interface KM23184

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URX II Rail M203 Interface

Part Number: KM23184

The URX II Rail M203 Interface allows the user to maintain a free float system when utilizing an M203 grenade launcher creating a more accurate weapon system 

Originally the URXII was Knight's Armament Company's Submission for the Rail Interface System II (RIS II)

3 contracts were awarded in 2005 


- A.R.M.S.

- Daniel Defense (Eventually winning the contract)

Contract Overview 

  • Free Floating Rail concept
  • Free Floating Grenade Launcher capability
  • More Accurate System