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KAC - Knight's Armament URX4 Installation Wrench
KAC - Knight's Armament URX4 Installation Wrench is a proprietary barrel nut wrench that integrates with all URX4 rail systems. The URX4 uses KAC's IBN (Internal Barrel Nut). The IBN is a very robust mounting system and is easier to install than previous iterations of KAC rails.
Manufacturer Knights Armament Company Shipping Restriction No MSRP $39.95 Color Black
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