Item Description

Selling this AEG as I’m switching to GBBR. Sig Sauer MPX-K by King Arms fully upgraded. Bought on April 12th 2025.

The original gun is polymer all around, this has been upgraded with the EMG Metal Parts Set For Sig Sauer TTI John Wick (King Arms) which upgraded the following in full metal:

Dust Cover set, Magazine Release Assembly, Magazine Catch Assembly, Take Down Pins, Bolt Release, Charging Handle Assembly, Barrel Nut, Hop Up Assembly, 4.5″ Outer barrel

The handguard has also been upgraded to the APFG 4.5' metal one. Comes with 1 TTI Aluminum magazine base. Included also a 1.5' outer barrel extension and VFC metal muzzle break.

Internal upgrades:

– ZCI Stainless Steel 6.02 Inner Barrel 175mm
– 4UANTUM Friction Pro Bucking and Nub
– VFC 16:1 gears
- SHS Shims
- 6mm Steel Bearings
– Gate Cylinder Head
– Gate nozzle
– Gate tappet plate
– SHS Piston and Cylinder
– Gate Aster 2 Bluetooth ETU Mosfet
– Gate Quantum Trigger
– Laylax Prometheus M110 Spring

Comes with original box, Nuprol Slim stick 11.1v Lipo battery and 3 extra magazines (total 4). Available also the TTI John Wick Carbine Kit with longer rail, inner/outer barrel, buffer tube adapter (see my other listing).

Red dot + Riser optional (+£25), Surefire light optional (£50)., Magwell not included,

Stable and consistent shooting between 1.05J - 1.06J (350 fps 0.20) making it skirmishing ready.

Purchase Options
1) MPX-K with External and Internal upgrades + 3 extra magazines (4 total): Red Dot and Suppressor not include in this package = £350
2) MPX-K with External and Internal upgrades + 3 extra magazines (4 total) + Red Dot Feyachi with riser + Suppressor PTS Griffin R22 Tapered Mount = £400
3) MPX-K with External and Internal upgrades + 3 extra magazines (4 total) + Red Dot Feyachi with riser + Suppressor PTS Griffin R22 Tapered Mount + Full carbine conversion kit + tight bore 370,mm Prometheus barrel = £520
4) MPX-K with External and Internal upgrades + 3 extra magazines (4 total) + Red Dot Feyachi with riser + Suppressor PTS Griffin R22 Tapered Mount + Full carbine conversion kit + tight bore 370mm Prometheus barrel + PTS Enhanced Polymer Stock Black = £550