matt_usmceodFactory aac upper with Kac urx II rail, barrel has been swapped to 5.56 chrome lined barrel by engage armament. Less than 100 rounds through it. Wanted to keep it but selling to finish other projects. Upper will come rear sight, and regular a2 compensator. Final price drop at $1250, priced to sell. Trade value $1400, would consider partial trade and cash for aimpoint T2, H2, Comp M5
