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  • 27995

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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.


  • Manufacturer: KWA USA
  • Model: RM4A1 ERG
  • Caliber: 6mm
  • Magazine Capacity: 30/60rd
  • Engine: Kinetic Feedback System [KFS]
  • Power: 11.1v 15C LiPo (NOT INCLUDED)
  • Velocity: 390-410 FPS
  • Rate of Fire: 14+
  • Weight: 7.50
  • Length: 30.5" - 33.75"
  • Outer Barrel Length: 14.5"
  • Inner Barrel: 6.05ID 395mm


  • Simulated Recoil
  • Mechanical/Electric Cut-off system
  • Full Metal alloy flat top upper reciever
  • Full Metal alloy lower reciever
  • Adjustable one piece hop-up
  • 3GX Gearbox with KFS
  • 2G high performance bucking
  • Adjustable Front and Rear Sights
  • Semi and Full Auto Select Fire
  • Removable Carry Handle
  • Realistic Construction and Field Stripping
  • Fiber Reinforced Handguard
  • 6 Position Collapsible Battery Crane Stock

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