Shop › DD M4V7 UPPER 556 16" MLOK BLK DD M4V7 UPPER 556 16" MLOK BLK $1,174.00 Daniel Defense DDM4V7, Complete Upper, 223 Rem/556NATO, 16" Cold Hammer Forged Barrel, 1:7 Twist, Black, MLOK 23-128-02339-047 Quantity: Add To Cart Added! Daniel Defense DDM4V7, Complete Upper, 223 Rem/556NATO, 16" Cold Hammer Forged Barrel, 1:7 Twist, Black, MLOK 23-128-02339-047