The new KWA AEG3 RM4A1 Carbine is the first model in the new 3rd gen AEG family. This updated ERG model now shares the the newest features of the recently introduced AEG 2.5 system, PLUS simulated recoil with KWA patented Kinetic Feedback System. Highlighted by a Switch Life Extender to minimize the wear and tear on trigger contacts, the AEG 3 combines ultimate AEG rifle with a more cost-effective training solution to provide players and professionals the best airsoft experience. Additional features include magazine cutoff compatibility combined with a quick-change spring for users to customize their KWA AEG rifle to their own specifications. The all new AEG 3 RM4A1 features: Improved high-torque motor (new) Upgraded high-speed gear set (new) Switch Life Extender to prevent contact burnout (new) Quick-change spring set up 30/120rd. magazine cut off compatibility (new) PTS Enhanced Polymer Grip (new) Mechanical/electric cut off system at 30/120rd Adjustable rotary hop-up Adjustable front and rear sights Removable carry handle Realistic construction and field stripping Fiber reinforced hand guard 6 position collapsible battery crane stock Improved high-torque motor Upgraded high-speed gear set PTS Enhanced Polymer Grip