Description
Complete upper, assembled in house using the following parts.
OA M16A2 Carry handle upper.
OA UPK
Milspec Charging Handle.
OA C158 6mm ARC DLC coated BCG.
OA M16A2 Rear Sight Assembly
Proof Research 16″ 6mm ARC rifle length gas barrel
Pinned NON F Marked FSP
San Tan Tactical Gas tube.