HM Defense 16MBUP556L MonoBloc Upper 223 Remk, 5.56x45mm NATO 16" Black Cerakote Barrel 7075-T6 Aluminum Black Anodized Receiver, 15" M-LOK Free-Float Handguard with Long Rail for AR-15

HM Defense 16MBUP-556-L, Upper, Fits AR-15, 223REM/556NATO, 16" MONOBLOC Barrel, Midlength Gas System with Integral Gas Block, 1:8 Twist, Muzzle Brake, Black Color, Anodized Finish, 15" Free Float Rail with M-LOK 16MBUP-556-L