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Sig Sauer MCX GEN II Air .177 Cal 90gr CO2 Air Rifle w/(1) 30rd Pellet Mag & M-LOK Handguard AIR-MCX-177-G2-BLK


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From training, to tactical drills, to defending a bird feeder from squirrels, Sig Sauer’s MCX GEN II CO2 Pellet Rifle reigns supreme. The overall feel, weight, and operation of the MCX GEN II CO2 Pellet Rifle is virtually identical to its 5.56/.300 Blackout counterpart – down to the controls. The magazine release and safety selector are in the same location as the real deal, and the flat-facing trigger delivers a better feel. The charging handle is also fully functional, and is used to puncture the seal on the CO2 cylinder. Even the magazine is the same size and weight as the original, and utilizes an innovative belt-fed system that is capable of firing 30 rounds in 3.5 seconds for rapid fire fun. The MCX GEN II CO2 Pellet Rifle’s level of realism promotes muscle memory, making it a perfect tool for training at a significantly lower cost. Other features of the MCX GEN II CO2 Pellet Rifle include a great potential for customization. A picatinny rail in the 12 o’clock position allows an optic of choice to be installed, and M-LOK attachment points allows lights, lasers, and other accessories to be used. In addition, the MCX GEN II CO2 Pellet Rifle’s CO2 cylinder is stored in a hollow compartment in the buttstock to keep it out of the way.

Features of the Sig Sauer MCX GEN II CO2 Pellet Rifle:

  • Same weight, feel, controls, and operation as authentic MCX GEN II rifle
  • Functional charging handle
  • Ideal for low-cost training, target practice, and pest control
  • 30 round magazine – can fire 30 rounds in 3.5 seconds
  • 12 o’clock picatinny rail


  • Caliber:.177
  • Action:Semiautomatic
  • Magazine Capacity:30 rounds
  • Rifle Overall Length:34.75"
  • Stock:MCX-style stock w/ CO2 compartment
  • Velocity:Up to 545 FPS
  • Weight:7.2 lbs
  • Magazines Included:1
  • C02 Cylinder Size88gr, 90gr
  • Operating SystemCO2
  • Iron Sights Yes
  • Optics Ready:Yes
  • Item ConditionNew
  • Product TypeAirgun
  • UPC798681662432

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