The Sig MPX Copperhead K is a compact 9mm submachine gun designed for reliability and adaptability. Featuring a 4.5″ barrel with an integrated muzzle brake, this model operates on a fully closed and locked rotating bolt system, ensuring enhanced safety and consistent performance. The monolithic Elite Series Cerakote upper receiver and integrated stock knuckle lower provide durability, while the short-stroke gas piston allows it to cycle all 9mm ammunition types without gas system adjustments.
Key features include ambidextrous controls (selector switch, magazine release, charging handle, and bolt release), an optic-ready design, and an M-LOK handguard for accessory mounting. The MPX Copperhead K weighs just 4.5 lbs and measures 14.5″ overall, making it highly maneuverable. Its Timney single-stage trigger offers a crisp pull, and the carbon steel barrel ensures long-term durability.
This Sig Sauer MPX Copperhead K comes with a 20-round magazine and is built for harsh environments, combining operator safety with proven reliability.
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