The SIG MPX SBR Custom is a unique 4-round burst Submachine gun. It offers good characteristics as a high damage per shot, a high cyclic rate of fire, and significantly increased damage multipliers to the limbs. These traits makes it quite useful against targets wearing heavy armor; unfortunately, due to its poor accuracy when aiming down the sights, it is not ideal for players that prefer to aim for the head. Although easily controlled under sustained fire, its initial recoil is very strong, further limiting its performance especially at longer ranges. It is effective for close range, although many players will be better off with a standard automatic SMG.