The M4A3 type carbine includes a Removeable Carry handle with 1/2 minute of adjustment Rear sight calibrated from 300 to 600 meters. The upper recievers full lingth pictinny rail accepts a wide a ray of scopes, red dot sights, accessories and night vision equipment. The Bushmaster M4 carbine is shipped in a lockable case with 30 round magazine,black web sling, safety block, and operators safety and instruction manual. I offer free MC,Visa,and Discover. Shipping id $30 to the lower 48 states. 1911.LLC reserves the right to remove this auction if the reserve is not meet.