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KWA RM4A1 AEG Airsoft Rifle

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KWA RM4A1 AEG Airsoft Rifle

Full Metal construction, Electric Recoil, AR Style,

$ 279.99
Manufactured by:KWA
SKU: 106-00105

Availability: Out of stock


The AR15 was originally designed as part of the U.S. military’s initiative to develop a lightweight and smaller caliber weapon as the standard infantry rifle. This innovative weapon utilized aircraft technology to lighten the rifle’s overall weight. This led to the creation of the M16, which has served as the backbone of the U.S. Military for more than 40 years.

The KWA RM4A1 ERG is an AR style, Electric Recoil Gun [ERG] that utilizes the patented Kinetic Feedback System [KFS]. This gives the user felt recoil with every trigger pull. All ERG Series rifles feature a mechanical/electrical cut-off system that works in conjunction with the ERG magazines to feed every BB and stop firing when the magazine is empty. Highlighted features of the RM4A1 ERG are metal alloy receivers, MilSpec buffer tube and stock, a flat top rail, which allows operators to customize their weapon configuration, and an operational bolt catch feature that provides the user with unparalleled realism by mimicking fundamental AR15 weapon manipulation. Similar to real AR15 style rifles the RM4A1 ERG’s modular design allows limitless customization options to best suit the individual’s training and MilSim needs.

Additional Information

Caliber 6mm  
Magazine Capacity 30/60 rounds  
Engine Kinetic Feedback System [KFS]  
Power Source 11.1v 15c Li-po/Li-Fe  
Dim. / Wt Inner Barrel Length:
Inner Barrel Diameter:
Outer Barrel Length:
Overall Length (Retracted):
Overall Length (Extended):
395 mm
6.05 mm
36.83 cm [14.5″]
77.47 cm [30.5″]
85.73 cm [33.75″]
Performance Rate of fire:
Energy Output with 0.20g BB:
14+ RPS
118-125 MPS [390-410 FPS]
1.27 – 1.49 Joules
Special Features
  • Simulated Recoil
  • Mechanical / electric cut-off system
  • Full metal alloy flat top upper receiver
  • Full metal alloy lower receiver
  • Adjustable one piece hop-up
  • 3GX gearbox with KFS
  • 2G high performance bucking
  • Adjustable front and rear sights
  • Semi-automatic & automatic select fire
  • Removable carry handle
  • Realistic construction and field stripping
  • Fiber reinforced hand guard
  • 6 position collapsible battery crane stock

Customer Reviews

Good investment gun Review by Connor
This gun was a good investment for me. Since it was mil spec, I was able to put a new rail on it and a different stock. New inner barrel ended up working out too. If you want a gun to build on, this one is a good one. (Posted on 9/9/2016)

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