The Sig Sauer MPX air rifle redefines what a modern CO2-powered rifle can be, just like the original MPX did for pistol caliber SBRs. Matched to the original model in weight, balance, and controls, the Sig Sauer MPX air rifle brings enhanced accuracy and realistic handling for more accessible training and practice. Chambered in .177 pellet, it features an 8" rifled steel barrel, synthetic handguard, Picatinny rail, tactical front grip, and flip-up front and rear sights.