The Sig MPX Rifle range reinvents the definition of submachine guns with its unique performance and design. It sets new standards in operator safety by introducing higher levels of safety, and in-field adaptability by being compatible with various stock and barrel configurations. Thanks to the in-field adaptability, operators can take the liberty of changing barrel length and stock configuration, while taking the shots in the field. Backed by rigorous testing, the SIG MPX firing system brings on board proven reliability along with a host of other features. The list includes familiar AR controls to help the operator respond better, even under adverse conditions.