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KWA RM4 SR10 ERG 3.0 (cutoff; recoil)

KWARM4SR1030 / 106-00303



KWA RM4 SR10 ERG 3.0

The KWA KM4 SR10 AEG was a very popular AEG amongst players for being well built and performing amazing out of the box compared to other mid-length rifles in the market. KWA decided to take the SR10 model and drop the ERG 3.0 gearbox into the gun for simulated recoil that gives the player the awesome performance the KM4 SR10 had previously. One feature that the new gearbox brought with it is the Switch Life Extender to minimize the amount of wear and tear on the trigger contacts. The rifle brings back the magazine cutoff feature if paired with proprietary midcaps for the RM4 the rifle will stop shooting after the last round has left the barrel.

The gearbox now comes with a quick change spring system allowing for adjustments in a matter of minutes instead of hours. The KWA RM4 SR10 was reinforced to handle the power of 11.1v LiPo batteries due to its strong ball bearing bushings and upgraded precision gear sets.

The KWA RM4 SR10 was engineered to outperform, offering ultra-high performance and training simulation straight out of the box.


  • Improved High-Torque Motor
  • Upgrade High-Speed Gear Set
  • Switch Life Extender to prevent contact burnout
  • Quick-change spring set up
  • 30/120 round magazine cut off compatibility
  • PTS Enhanced Polymer Grip
  • Rotary Hop-up
  • One-piece upper receiver


Overall Length: 36.5inches
Weight: 7.4 lbs
Outer Barrel Length: 16 inches
Barrel Thread: 14mm CCW
Inner Barrel Length: 425mm
Inner Barrel Diameter: 6.05mm
Muzzle Velocity: 400fps
Fire Modes: Safe/Semi/Full
Color: Black
Gearbox: V2 ERG 3.0, 9mm
Magazine Capacity: 30/120 round
Package Includes: Gun, Magazine, manual, warranty card

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