Sig Sauer MPX-K Sportsline Airsoft AEG Rifle in Black

Agile, compact, and built for speed, the Sig Sauer MPX-K Sportsline Airsoft AEG Rifle in Black delivers performance and style in a lightweight submachine gun platform that’s tailor-made for CQB. Drawing inspiration from the iconic SIG MPX used by real-world tactical units, this airsoft rifle brings that same compact firepower to the field—perfect for players who want maneuverability without compromising functionality or looks.

At just 1.6kg, the MPX-K is a featherweight champion. Its nylon polymer construction keeps things ultra-light without sacrificing durability. You’ll find it a joy to handle in fast-paced scenarios where every second counts, whether you’re darting through tight corridors or clearing corners in an indoor arena. The sleek, matte black finish matches its real-steel sibling, giving it a professional, no-nonsense aesthetic.

Under the hood is a modified Version 2 gearbox featuring a quick-change spring system. This lets you adjust your FPS on the fly—ideal for switching between indoor and outdoor fields without a complete teardown. Out of the box, the rifle shoots at approximately 320 FPS with 0.20g BBs, which strikes a great balance between CQB legality and enough punch to be useful at mid-range too. And since it’s still based on a V2 platform, upgrades are easily accessible for players who like to fine-tune their gear.

Control-wise, it’s been designed with ambidextrous use in mind. Both the fire selector and mag release are mirrored on both sides, and the charging handle is central—making it super user-friendly for lefties and right-handers alike. The minimalist side-folding stock adds to its utility, making transport a breeze and allowing for better maneuverability in confined spaces. It also shares compatibility with the SIG AIR MCX stock system, so you’ve got customisation options straight away.

The MPX-K also boasts an M-LOK front handguard and full-length Picatinny top rail, giving you loads of space to kit it out with optics, torches, or vertical grips. Whether you’re building a slick CQB blaster or a minimalistic backup rifle, it’s a great platform to build on. The included 100-round mid-cap magazine feeds reliably and sits flush with the compact frame, keeping the profile low and snag-free during aggressive movement.

Accessing the adjustable rotary hop-up is as simple as pulling back the charging handle, offering precise tuning for different BB weights or shooting styles. Powered by a 7.4v to 9.6v battery (Mini-Tamiya connector), it’s efficient and reliable for sustained play. Just a heads-up—it’s not compatible with 11.1v LiPos, so keep that in mind when setting up your battery loadout.

Whether you’re a CQB regular, looking for a reliable training platform, or just want something sleek and nimble as a primary, the Sig MPX-K Sportsline is a solid choice. It delivers real-world design cues with solid airsoft performance in a package that’s both accessible and deadly-effective on the field.

Features

• Lightweight nylon polymer construction for agile play 
• Modified Version 2 gearbox with quick-change spring
• Adjustable rotary hop-up for consistent shot placement
• Ambidextrous fire selector, mag release, and charging handle
• M-LOK front handguard and Picatinny top rail for accessories
• Compact SMG design, ideal for CQB environments
• Side-folding minimalist stock for portability and storage
• Compatible with SIG AIR MCX series stocks

What you get

• Sig Sauer MPX-K Sportsline AEG Rifle (Black) 
• 100-round Mid-capacity Magazine
• User Manual

Details

• Type: Electric Airsoft SMG (AEG)
• Construction: Nylon Polymer Body
• Gearbox: Modified Version 2 (Quick Change Spring)
• Magazine Capacity: 100 rounds
• FPS: Approx. 320 FPS (0.20g BB)
• Battery Compatibility: 7.4V - 9.6V (Mini-Tamiya connector)
• Hop-Up: Adjustable Rotary
• Length: 565mm (Compact)
• Weight: 1.6 kg (with magazine)
• Fire Modes: Semi / Full Auto / Safe
• Thread Type: 14mm CCW