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SIG Sauer ProForce Sportline MPX-K Airsoft AEG SMG

3.5 stars, based on 2 reviews
SIG Sauer ProForce Sportline MPX-K Airsoft AEG SMG
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  • Fully licensed SIG Sauer MPX-K replica
  • Strong Lightweight polymer construction with full metal gearbox
  • Complete SIG Sauer trademarks
  • Minimalist folding skeleton stock
  • Adjustable hop-up accessible under the dust cover
  • Semi- and full-auto fire modes
  • Full-length top 1913 picatinny RIS for mounting optics, lights, lasers, or other accessories
  • Handguard features M-LOK slots at 3, 6, and 9 o'clock positions
  • 100 round mid-cap magazine
  • Ambidextrous magazine release for right- or left-handed shooters
  • Front-wired with small tamiya connector

Manufacturer: SIG Sauer

FPS Range: 280-300


Length: 390mm - 595mm (Adjustable)
Inner Barrel: 140mm
Weight: 1678g (3.7lbs)
Magazine Capacity: 100rd
Thread Direction: 14mm Negative
Gearbox: Version 2 Fully Upgradeable with Quick Spring Change system
Motor: Long Type
Fire Modes: Semi/Full-Auto, Safety
Battery: 7.4v LiPo AK style stick battery (Wired to handguard and top rail w/ small Tamiya)
Hopup: Adjustable M4 Rotary style hopup
Package Includes: Gun, Magazine


SIG SAUER, Inc. is a leading provider and manufacturer of firearms, electro-optics, ammunition, airguns, suppressors, and training. For over 150 years SIG SAUER, Inc. has evolved, and thrived, by blending American ingenuity, German engineering, and Swiss precision. Today, SIG SAUER is synonymous with industry-leading quality and innovation which has made it the brand of choice amongst the U.S. Military, the global defense community, law enforcement, competitive shooters, hunters, and responsible citizens. Additionally, SIG SAUER is the premier provider of elite firearms instruction and tactical training at the SIG SAUER Academy. Headquartered in Newington, New Hampshire, SIG SAUER has almost 2,000 employees across eight locations in the U.S. and around the world.

About ProForce

The SIG AIR ProForce line of airsoft guns is designed for professionals who train frequently and want the option of training safely in realistic force-on-force scenarios. SIG SAUER is a huge proponent of training, and we will continue to offer our customers numerous new product options to facilitate the safe practice of gun handling and target shooting in various environments.

2 Customer Reviews

(Write a review)

by Gavin H. on 03/03/2023
"Amazing I love it! full auto hits dif on this mpx
by chris s. on 03/06/2023
"Honestly dont waste your money . Folding stock feels very flimsy. Battery compartment is very specific sizing and just opened ended, which is a terrible design. BUT the worst part is the proprietary plastic mags .

Pros: The body is polymer, but feels sturdy with zero wiggle anywhere . The trigger feel is fantastic and gearbox seems solid enough for the price point .

Would be an amazing option for a hpa conversion, if it was not for the absolutley awful PROPRIETARY magazines ..........

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