Sig Sauer AIRMCX177G2BLK CO2 Air Rifle - .177 Caliber, Semi-Automatic, Tactical Black

The Sig Sauer AIRMCX177G2BLK is a CO2-powered air rifle built on proven tactical rifle ergonomics, delivering semi-automatic .177 caliber performance in a modern package. Chambered for standard .177 pellets, this air rifle combines accuracy and controllability with genuine rifle-like handling—ideal for shooters who want practical trigger time, small-game hunting, or backyard marksmanship practice without the noise and cost of powder-burning firearms.

The MCX GEN II features a 30-round magazine and semi-automatic action that lets you maintain target focus through rapid follow-ups. The rifled barrel delivers consistent accuracy across the optimal pellet weight range, while flip-up dual aperture peep sights keep you on target and adjust for windage and elevation. An M-LOK handguard gives you modern accessory mounting flexibility, and the redesigned buttstock houses quick-detach CO2 cartridges (88g or 90g) so swaps are fast and straightforward. The reduced-angle grip and flat-blade trigger feel familiar to tactical rifle shooters, while ambidextrous safety levers work equally well for left- and right-handed operation.

At 7.2 pounds with an overall length of 34.75 inches, the AIRMCX177G2BLK balances maneuverability with a comfortable pointability. Muzzle velocity reaches up to 545 feet per second depending on pellet weight and CO2 charge condition. The synthetic stock and tactical black finish are built for function over frills, and the low-profile recoil pad keeps shooting comfortable during extended sessions. This is air rifle shooting for people who value practical performance and genuine rifle-handling experience.

Key Features

• Semi-automatic .177 caliber action with 30-round capacity
• Flip-up dual aperture peep sights with windage and elevation adjustment
• M-LOK handguard for accessory mounting and customization
• Quick-detach buttstock designed for 88g or 90g CO2 cartridges
• Ambidextrous manual safety levers for either-hand operation
• Rifled barrel optimized for 5.0–8.5 grain pellets
• Reduced-angle grip and flat-blade trigger for tactical familiarity
• Low-profile recoil pad and synthetic tactical black stock

Specifications

Frequently Asked Questions

What .177 pellets work best in the Sig Sauer AIRMCX177G2BLK?

The rifled barrel is optimized for pellets in the 5.0 to 8.5 grain weight range. Staying within this range will give you the best accuracy and velocity consistency. Always use quality pellets designed for air rifles.

How long does a CO2 cartridge last?

CO2 cartridge lifespan depends on shooting volume and technique, but typically an 88g or 90g cartridge will deliver a full 30-round magazine multiple times before needing replacement. Cooler temperatures can reduce performance, so keep spare cartridges on hand during extended range sessions.

Can I add accessories to the M-LOK handguard?

Yes. The M-LOK system handguard allows you to mount modern tactical accessories such as lights, lasers, or shooting support gear using standard M-LOK compatible hardware.

Is this air rifle suitable for small-game hunting?

The AIRMCX177G2BLK delivers .177 caliber performance appropriate for small-game hunting at reasonable distances, depending on local regulations and your quarry. Always check your local hunting laws before using any firearm for game.