Ultradyne C4 Dynamount Flip-Up Barrel Mounted Front Sight AR-15 1/2″-28 Thread Steel Nitride and Aluminum | AMMO GATE

Most of the time, shooters mount front sight on the picatinny rail of a free-float handguard. By definition, a free-float handguard doesn’t move with the barrel. This means that when that handguard moves, the sights do to. Even properly-installed handguards move, whether it’s from the weight o…