The Marines Airsoft ER01 AEG rifle is a sleek & smooth-firing airsoft gun with a unique look. This semi/full automatic gun is part of the United States Marine Corps' officially licensed airsoft guns. The ER01 AEG features authentic USMC mud & desert tan colors with trademark USMC logo on the receiver, a 500 rd magazine hopper, and a shot velocity of 200 fps (using .12g BBs). The stock is removable for unbeatable mobility in the battlefield. The adjustable hop-up unit also lets you dial in the gun's long distance accuracy for faraway targets. A portion of the proceeds from the sales of these guns will go to the Wounded Warrior Regiment project (WWR). This program provides and facilitates non-medical care to combat & non-combat wounded and injured Marines & their families. Features: Semi/full automatic Official USMC logo & colors Removable stock Adjustable hop-up Foregrip Compensator