Description
FBI trade in upper (used).
Complete minus bcg / muzzle device.
Colt raised C / Alcoa forge marked upper receiver
Colt 11.5″ 5.56 barrel (C MP CB marked), non F marked FSP with Trijicon tritium FSP.
Knights Armament Co, Titusville, FL marked RAS quad rail.
Our in house Onyx Arms Stubby Vertical Grip.
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