The Dboy CQB Plastic Body AEG BY-060A is an airsoft rifle for the beginner to intermediate player. The rifle was introduced to bridge the gap between Lower Powered Electric Guns and your standard 350-400 FPS field airsoft guns. The BY-060A is modeled after your standard m4 carbine issued by the United States Army. The air soft rifle body is constructed of plastic and includes a plastic gearbox. There is an adjustable hop up and metal inner barrel. The AEG includes a 300 round magazine that is Tokyo Marui compatible. The M4 comes with a shortened outer barrel to be easily maneuvered with in CQB games and close quarter scenarios. To aim with this rifle, it comes with your standard front triangle sight and rear sight with carrying handle. The carrying rear sight carrying handle can be removed to expose your standard Picatinny rail. You can easily mount any type of optics to your liking. It comes with both a front and rear sling mount. The stock is your standard LE style collapsible stock that can be adjusted in 6 positions. The front hand guard is split into two pieces to house the battery. Within the package, you will receive the AEG rifle, magazine, battery, charger, and unjamming rod. The battery that is included is an 8.4v mini Tamiya style connector. We would not recommend using a 9.6v or downgrading to a 7.4v battery. The manufacturer has picked a battery voltage that provides a good rate of fire without compromising durability. Performance on this rifle shoots at a moderate 230 FPS with .2g BBs and 330 with .12g BBs. The Dboy CQB Plastic Body AEG BY-060A is a great bargain and starter gun for all ages.