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KAC - Knight's Armament URX 4 IBN Keymod Rail Handguards
The Knight's Armament Corp. Upper Receiver Extending 4 (URX4) is KAC's entry into the low profile, keymod rail market.
This rail is extremely unique in that is is monolithic in construction: the rail body is also the barrel nut! Included with the rail is a proprietary wrench for the URX4 system, as well as shims for timing the rail when tightening it on a upper receiver at 60-70 foot pounds.
*Includes shim set and wrench.
Manufacturer Knights Armament Company Shipping Restriction ITAR/Export Restricted MSRP $271.66 Weapon Model N/A Barrel Rest Free Float Material No Material Finish No
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