SIG Sauer CO₂ Air Rifles: MPX & MCX

SIG Sauer CO₂ Air Rifles: MPX and MCX Compared

SIG Sauer CO₂ air rifles combine the distinctive ergonomics of the MPX and MCX platforms with a CO₂-powered system designed for recreational target shooting and plinking. Their 30-round multi-shot pellet magazines allow a series of shots without having to manually load a new pellet after every shot.

This category includes several SIG Sauer MPX and MCX air rifles in .177 calibre (4.5 mm), ranging from the original MPX ASP to the updated Gen2 models, with genuine differences in size, ergonomics and equipment.

To compare these SIG Sauer models with other air rifles using the same power system, browse our full range of CO₂ air rifles . For other brands, calibres and power systems, explore our complete selection of air rifles .

SIG Sauer MPX or MCX: What Are the Differences?

The MPX and MCX share a similar concept based around CO₂ power, .177 calibre pellets and a multi-shot system, but they differ mainly in their dimensions, handling and equipment.

The MPX offers a more compact and manageable format. The MCX has the proportions of a longer air rifle, while the MCX Canebrake provides a more compact configuration within the MCX family. The Gen2 models introduce updated ergonomics and features such as an M-LOK handguard.

Which SIG Sauer CO₂ Air Rifle Should You Choose?

SIG Sauer MPX ASP: Compact and Manageable

The MPX ASP is the classic configuration in the range. It combines a rifled steel barrel with a 30-round pellet magazine, sights and a Picatinny/Weaver rail in a compact format.

It is particularly suitable for shooters looking for a manageable multi-shot CO₂ air rifle for recreational target shooting and plinking. View the SIG Sauer MPX ASP CO₂ Air Rifle .

SIG Sauer MPX Gen2 ASP: Updated Ergonomics

The MPX Gen2 ASP retains the compact proportions of the MPX while updating several key components. These include an M-LOK handguard, flat trigger, revised grip and redesigned stock.

It is a good option for shooters who want the compact MPX format with a more modern and modular configuration. View the SIG Sauer MPX Gen2 ASP .

SIG Sauer MCX Canebrake: A More Compact MCX

The MCX Canebrake brings the MCX concept into a shorter configuration. It uses a 30-round Roto Belt pellet magazine and features a rifled barrel and Picatinny rail.

Its more compact dimensions and black/FDE finish clearly distinguish it from the longer MCX Gen2. View the SIG Sauer MCX Canebrake FDE CO₂ Air Rifle .

SIG Sauer MCX Gen2 ASP: Longer Air Rifle Format

The MCX Gen2 ASP has larger dimensions than the MPX and incorporates the updates introduced with the second generation, including an M-LOK handguard, flat trigger and revised ergonomics.

It is particularly relevant for shooters who prefer the proportions and handling of a longer air rifle rather than the more compact MPX platform. View the SIG Sauer MCX Gen2 ASP .

30-Round Multi-Shot Pellet Magazine

One of the defining features of the SIG Sauer MPX and MCX is their 30-round Roto Belt or RPM pellet magazine. The internal system positions each pellet in sequence, allowing multiple shots without manually inserting a new pellet after every shot.

This combination of CO₂ power and a high-capacity multi-shot magazine provides a very different shooting experience from a conventional single-shot break-barrel air rifle.

Which Pellets Do the SIG Sauer MPX and MCX Use?

The models in this category use .177 calibre (4.5 mm) Diabolo pellets. CO₂ refers to the power system rather than the type of projectile, so these models should not be confused with CO₂ replicas designed to fire steel BBs.

Different pellet weights and profiles can be found in our range of air rifle pellets .

88 g and 90 g CO₂ Cartridges

The SIG Sauer MPX and MCX models in this range use larger CO₂ cartridges than the small 12 g capsules commonly found in many CO₂ pistols. Depending on the specific model, they use 88 g or 90 g CO₂ cartridges.

Always check the specifications of the exact model before fitting a cartridge. Available formats can be found in our selection of CO₂ cartridges .

Picatinny and M-LOK for Accessories

Depending on the version, these SIG Sauer air rifles feature Picatinny rails and M-LOK interfaces for mounting compatible optics and accessories.

The Gen2 models in particular use a more modular handguard. Before choosing a red dot sight, scope or other accessory, always check the mounting system and available space on the specific model.

What Type of Shooting Are They Designed For?

SIG Sauer MPX and MCX CO₂ air rifles are primarily suited to recreational target shooting and plinking. Their main appeal lies in the multi-shot magazine, handling and accessory mounting options.

When choosing between the models, it is therefore more useful to compare their size, ergonomics and generation rather than focusing solely on power figures.

Buy a SIG Sauer CO₂ Air Rifle at Carbin

Compare the different SIG Sauer MPX and MCX CO₂ air rifles by size, generation and equipment. Check each product page for current specifications and availability before choosing the model that best suits your recreational shooting needs.