King Arms P90 Tan + Perun MOSFET + Mags

£300.00

Additional Info

Item ConditionUsed-Like New
MakeKing Arms
ModelP90
Weapon TypeAuto Electric
FPS (Approximately)328 - 350 FPS
Swaps/TradesNo
Collection/DeliveryPost or Collect

Selling my King Arms P90 that has been upgraded with a Perun P90 MOSFET/ETU.

This P90 does not have the FN Herstal trademarks but uses a much nicer polymer body rather than the cheap, creaky ABS plastic versions. I’ve installed a Perun P90 MOSFET so you can safely use 11.1v LiPo batteries and enjoy the extra features it provides like active breaking, precocking etc.

I’ve added a longer outer barrel (and inner barrel) to mimic the style of the FN PS90. The longer outer barrel is simply threaded on where a normal muzzle device would go and is secured in place with a grub screw so it’s easy to reverse if wanted. I’ve also added a Project90 front swing swivel as well as a Project90 rear sling swivel rather than using the cumbersome slings that wrapped around the body of the gun. The sling is a repro of the Magpul MS3.

The gun comes with 4x MAG branded mid cap magazines that can hold 170 BBs. These mags can be a bit of a faff when feeding and sometimes need a tap on the top as the follower gets stuck. As far as I know it was a common issue with these mags and it required disassembly to fix. I’ve never had an issue with CYMA, King Arms or Tokyo Marui mags feeding in the gun.

Looking for £300 including postage and paypal fees.

Listing ID: 344697b8a21f15d1

January 29, 2026 4:26 pm

4 days, 22 hours