SIG Sauer MPX .177 CO2 Air Rifle, Semi-Auto, 8-Inch Rifled Steel Barrel, Folding Sights, Black
This SIG Sauer (SIG AIR) MPX Air Rifle is a factory-new, .177 caliber CO2-powered semi-automatic that mirrors the MPX layout with AR-style controls and practical features. It accepts 88 g and 90 g CO2 cylinders, uses SIG's belt-driven Rapid Pellet Magazine (RPM) system, and delivers up to 450 fps from an 8-inch rifled steel barrel. A receiver-mounted Picatinny top rail, folding iron sights, and compliant F-in-pentagon marking round out a feature set designed for realistic handling and straightforward performance.
Condition
Overall Condition: Factory new condition, unfired with no signs of handling. Includes all accessories and paperwork in the original factory box/case.
Bore Overall Condition: New - As-new bore with no signs of use beyond factory testing.
What's Included
- Factory SIG Sauer cardboard box with molded foam insert
- SIG MPX Air Rifle owner's manual
The MPX Air Rifle follows the MPX's familiar form with AR-style controls, including a bolt catch and magazine release, plus a selector lever marked SAFE/FIRE. It features a faux ejection port with dust cover for realistic handling and right-side receiver markings that read "SIG MPX" and ".177 CAL (4.5mm)." A German F-in-pentagon marking denotes airgun compliance.
Its CO2 powerplant accepts both 88 g and 90 g cylinders, providing reliable semi-automatic operation with a listed muzzle velocity of up to 450 fps. The 8-inch rifled steel barrel supports accuracy with standard .177 caliber (4.5 mm) pellets.
Sighting and mounting are straightforward thanks to a receiver-mounted Picatinny top rail paired with folding front and rear iron sights. A manual safety is included for user-friendly operation.
The rifle uses SIG's belt-driven Rapid Pellet Magazine (RPM) system and is built with a fixed synthetic stock and a ventilated, slotted synthetic handguard. The all-black finish, 25.75-inch overall length, and 6.2-pound weight provide a solid, consistent feel.