Shop › LUTH AR 16" LTWT BBL COMP UPPER 223 LUTH AR 16" LTWT BBL COMP UPPER 223 $413.55 Luth-AR 16" Lightweight Barrel Complete Upper Receiver, 223 Remington, Black Finish, 15" Palm Handguard Keymod, 1:9 Twist, Complete Barrel Assembly w/BCG, Fits AR-15 BAA3-L16 Quantity: Add To Cart Added! Luth-AR 16" Lightweight Barrel Complete Upper Receiver, 223 Remington, Black Finish, 15" Palm Handguard Keymod, 1:9 Twist, Complete Barrel Assembly w/BCG, Fits AR-15 BAA3-L16