The SIG MPX redefined modern pistol caliber SBRs, and this ASP version does no less for CO2 rifles. Matched to original model weight, balance, and controls, the SIG MPX ASP airgun puts more accurate performance into more accessible practice. Chambered in .177 pellet, features include: an 8″ rifled steel barrel, a synthetic handguard, a Picatinny rail, a tactical foregrip grip, and flip-up front and rear sights. The rifle is powered by a 90-gram CO2 cartridge. It comes with one 30-round magazine and a SIG micro red dot sight.