Shop › LANTAC 9MM DRAGON MB 1/2X28 LANTAC 9MM DRAGON MB 1/2X28 $147.99 LanTac USA LLC Dragon, Muzzle Brake, 9MM, Black Nitride Finish, Hardened Milspec Steel, 1/2x28 Thread Pitch DGN9MMD Quantity: Add To Cart Added! LanTac USA LLC Dragon, Muzzle Brake, 9MM, Black Nitride Finish, Hardened Milspec Steel, 1/2x28 Thread Pitch DGN9MMD