http://www.airsplat.com/Items/ER-KA-M4-AG72.htm
AirSplat On Demand's Jake and Kristen Review the King Arms Oberland Arms OA-15 M4 AEG. King Arms makes a spot on 1:1 scale Airsoft electric replica of this durable german engineered rifle. Features include a crane stock, flat top RIS rail, and free float front grip. While not able to be dipped in mud like the real steel, it's certainly can handle its own on the field! Chrono test and shooting course is provided