Infamous Airsoft now starts doing airsoft gun reviews starting with the KWA RM4A1 Gen 3 ERG... "For the first time on the Channel I will do a Review, and to start big, I will start with the first model of the 3rd Generation of KWA Retraction Electric Replicas , RM4A1. In addition to talking about the components and performance of the replica, I will focus on showing how you perform on court and convey the feeling of the Electric Recoil."
A review by Airsoft Outlet Northwest of the KWA RM4A1 ERG which is available right now at their online store... "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.