Spike's Tactical 11.5" URX II 5.56/.223 Pistol/SBR Upper Receiver
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Spike's Tactical 11.5" LE .223/5.56x45 caliber Complete Pistol/NFA Upper Receiver assembly with a Knight's Armament URX II Handguard. Barrel is certified MIL-B-11595E CMV. This is a COMPLETE Pistol Upper receiver assembly, everything except a rear sight. HP/MP Tested Bolt & Barrel. Gas block is pinned in place. You will be hard pressed to find a better deal on a quality Upper Receiver than this one.
Full specs are listed below.