KWA VM4A1 Full Metal AEG 2.5 Airsoft Rifle

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KWA VM4A1 Variable FPS Airsoft Rifle

KWA has reengineered their gearbox with new improvements that leave other AEGs in the dust. KWA's new Variable Performance System allows this AEG to have it's spring changed as well as FPS fine-tuned all without having to remove the gearbox from the rifle. In addition to that, KWA has also added a Switch Life Extender to prevent damage to the trigger contacts when using high voltage LiPO batteries. The old motors were swapped out with new and improved High Torque motors  to allow a wide array of AEG springs to be used for many different FPS ranges. Upgraded high-speed gear sets allow this AEG to reach 18+ BBs per second when firing using a LIPO battery. KWA removed their two-piece hop up system and replaced it with an easier to use Rotary style hop up. The one-piece upper receiver is rock solid and does away with the two-piece style flaws. KWA Airsoft also included a magazine cut off system along with their 30/120 BB capacity adjustable mid-cap magazines.

Special Features:

  • KWA VM4 Reinforced 9mm V2 gearbox
  • Adjustable FPS via the Variable Performance System, tool included
  • KWA 2G high performance bucking
  • Fiber reinforced handguard with battery compartment
  • Full Metal One Piece Upper and Lower Receivers
  • Adjustable front and rear sights
  • 6 position collapsible crane battery stock
  • Semi and full auto selective fire
  • Adjustable rotary hop-up


  • Velocity = 400-410 Stock, variable/adjustable
  • Rate of Fire = 18+ RPS
  • Inner Barrel Length = 396 mm
  • Inner Barrel Diameter = 6.05 mm
  • Weight = 7.1 lbs with magazineBarrel Thread = -14 mm
  • Magazine Capacity = 30/120 rounds
  • Energy Output with 0.20g BB = 1.2 Joules max with stock spring
  • Power Source = 9.6v NiMh, 7.4v or 11.1v 15c Li-po/Li-Fe

Note: Battery & Charger not included.

Power Source:
Variable FPS; Stock FPS Set ~
Gun Type:
KWA Manufacturer's 45 Day Warranty

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