SIG Sauer MPX .177 CO2 Semi-Auto Air Rifle, 8-Inch Rifled Steel Barrel, 30-Round RPM, Black
This SIG Sauer MPX .177-caliber CO2 air rifle delivers semi-automatic operation with the look and feel of the MPX platform. It features an 8-inch rifled steel barrel, a belt-driven Rapid Pellet Magazine (RPM) with 30-round capacity, and integrated Picatinny rails with flip-up iron sights. Factory new and made in Japan, the box notes up to 600 FPS and performance testing to 15,000 shots.
Condition
Overall Condition: Factory new condition, unfired with no signs of handling. Includes all accessories and paperwork in the original factory box/case.
Bore Condition: New - As-new bore with no signs of use beyond factory testing.
What’s Included
- Factory SIG SAUER MPX retail box with molded foam insert
- SIG SAUER MPX air rifle owner's manual and safety literature
- Pellet seating tool for SIG AIR MPX/MCX RPM magazine
- SIG AIR Rapid Pellet Magazine (RPM) installed
The MPX air rifle is powered by 88 g or 90 g CO2 cylinders and runs a CO2-driven semi-automatic action for quick follow-up shots. SIG’s belt-driven RPM system feeds .177 (4.5mm) pellets smoothly, providing a 30-round sequence per magazine.
An 8-inch rifled steel barrel anchors the system for pellet stability. Overall length is 25.75 inches, and the rifle weighs 6.2 pounds, giving it a solid, realistic feel while maintaining easy handling.
The rifle is finished in matte black with a black synthetic fixed stock and pistol grip. A polymer handguard with vent slots and Picatinny sections, plus integrated Picatinny optics and accessory rails, offers straightforward mounting options. Flip-up front and rear iron sights are included.
The box notes Made in Japan (packaging printed in PRC), an advertised velocity of up to 600 FPS, and performance testing up to 15,000 shots. The model aligns with SIG part number AIR-MPX-177-88G-30-BLK.