DDM4 v7S Complete Upper Receiver 5.56mm NATO 11.5 Inch Barrel With LPG MRF XS 10.0 Rail - All NFA Rules Apply Available to order on-line. Ships in 5-14 days $1,214.00
DD Upper, MK18 URG, 556NATO, 10.3" Hammer Forged Barrel , 1:7 Twist, Flat Top, Black Finish 23-004-08013-006 Available to order on-line. Ships in 5-14 days $1,412.00
Spike's Tactical Barrel, 556NATO, 11.5" Hammer Forged Barrel, 1:7 Twist, Fits AR Rifles, 1/2x28 TPI Thread, Black Finish SB51106-LW Available to order on-line. Ships in 5-14 days $318.00
DD Barrel, Light Weight, 556NATO, 14.5", 1:7 Twist, Mid Length Gas System, Black 07-078-08072-018 Available to order on-line. Ships in 5-14 days $338.00