Spikes Tactical 16" M4 5.56/.223 URG
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Spike's Tactical 16" M4 LE .223/5.56x45 caliber Complete Upper Receiver assembly for AR15/M16 type Rifles. Barrel is certified MIL-B-11595E CMV. This is a COMPLETE Upper receiver assembly, everything except a rear sight, and includes Magpul MOE heat shield lined handguards. HP/MP Tested Bolt & Barrel. You will be hard pressed to find a better deal on a quality Upper Receiver than this one.