Matt of Evike.com shows the EMG Ares Airsoft Slim Motor Grip which he says is the most realistic AEG motor grip... "You wanna take your Milsim immersion to next level, Brother?  Then come check out the new EMG ARES Slim Motor Grips, Brother.  They have the same ergonomics as the real AR parts, Brother.  You want realism, Brother? Then this is it, Brother!"