Reapers Airsoft reviews an E&C M16A3 Semi-auto AEG that comes with an M203 launcher and two magazines... "Hello folks, in this review we will look at the M16A3 with M203 (40mm grenade launcher) as a 6mm S-AEG Airsoft/Softair. The Begadi CORE EFCS/MOSFET is already installed directly in this model."