KWA KM4A1 Airsoft AEG


  • $230.00
    Unit price per 

The KWA KM4A1 Carbine was the first production AEG engineered specifically for the unparalleled performance of today’s advanced battery technology – Lithium Polymer (LiPo). To handle the extra power of LiPo batteries, the KM4A1 is equipped with a reinforced metal gearbox utilizing KWA’s unique 8 and 9 mm ball bearing bushing combination and case hardened, precision metal gear sets.

Heavy duty springs and high-torque motors are matched for optimum results. High-grade metal alloy are used for the production of the upper and lower receivers. The KWA KM4A1 Carbine was engineered to outperform the competition, offering ultra high performance and dependability straight out of the box!


  • Full metal receiver and barrel
  • Adjustable velocity with quick adjust tool (between 390 - 440 FPS)
  • KWA 2GX Gearbox
  • KWA 2G hop-up
  • Retractable Crane stock
  • Lightweight polymer handguard
  • 120 Round midcap magazine
  • Li-Po ready

FPS: 390-400 w/ .20g BB

Includes: Gun, 1x Magazine, Manual (Battery/charger NOT included)

Magazine Type: KWA M4 style non-cutoff magazines, most other brand M4 style magazines.

Gearbox Type: Version 2

Motor Type: Long Type

Thread Type: 14mm Negative

Battery Connector Type: Mini Tamiya

Battery Type: 9.6V NiMH/7.4v Li-Po nunchuck battery recommended


All airsoft guns ship with a permanently affixed blaze orange muzzle device.