Chrome moly M4 contour barrel with 1x9 inch twist rate. Bolt carrier: shot-peened, magnetic particle inspected Mil Spec 8620. Forged 7075 T6 aluminum lower and upper. A3 flattop, T-marked upper receiver. A2 style pistol grip. M4, commercial tube 4-position stock. A2 flash hider.FOR IN STORE PICKUP, THERE WILL BE A $10.00 BACKGROUND CHECK FEE AT TIME OF PICKUP.