This is a mid weight 18" barrel( brownells item number 915000021 Ballistic advantage wt 41oz, 5.56mm nato, SPR contour rifle length gas 18", 1/2-28 threads 1-7 twist.) with Precision Armament M4-72 Severe Duty 5.56 Compensator - Black installed. Aero Gas block, Aim Sports M-LOK 13.5" FFH, and a Anderson Manufacturing AR-15 Upper Receiver.
$300 FTF or shipped at what it cost to ship

bcg and ch add $130