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		                        | National Stock Number:
 1005-01-647-6886
 
 Federal Supply Class:
 1005
 
 National Item Identification Number:
 016476886
 
 Description:
 RECEIVER,CARTRIDGE
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 Manufacturer Information:
 
 | 408JXN00553-2 | 12255 | NAVY, UNITED STATES DEPARTMENT OF THE |  | RIS IIA URG 14.5 | 41CT5 | U S SPECIAL OPERATIONS COMMAND MACDILL AIR FORCE BASE SORDAC-J4 | 
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 Techincal Specification:
 
 | PART NAME ASSIGNED BY CONTROLLING AGENCY | RIS IIA URG 14.5" CRANE |  | SPECIAL FEATURES | 14.5-INCH RAIL INTERFACE SYSTEM (RIS II) IS A COMPLETE UPPER RECEIVER ASSEMBLY THAT ATTACHES TO M4/M4A1 LOWER RECEIVERS. CONSISTS OF A NON-SERIALIZED UPPER RECEIVER, URG RAIL 14.5 INCH, AND EITHER A 14.5 LIGHT BARREL OR 14.5 HEAVY BARREL CONFIGURATION WITH MUZZLE COMPENSATOR NSN 1005-00-599-7048, FOLDING FRONT SIGHTS (FLIP UP) NSN 1005-01-473-1410, AND FORWARD SLING MOUNT NSN 1005-01-597-2340. | 
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