The Colt M4 CQB CNC RIS AEG Sportline - Black is a great all black airsoft M4 gun. Complete starter kit made by Cyma. Fully licensed Colt trademarks/logo M4 airsoft gun. Full metal Cyma gearbox. Gun is solid high quality polymer built on the exterior with some metal components. A solid M4 AEG with original Colt trademarks. The CQB CNC RIS includes a full metal CNC 8 inch rail system, crane stock for large battery capacity, and a carbine length barrel with large integrated metal faux suppressor. Top rail includes removable flip-up rear and front sights. This is a fantastic all around gun for airsoft with advanced exterior features not found on below $200 usually. The Colt M4 has a metal quality gearbox, type version 2. This M4 is compatible with all M4 spare magazine types, V2 gearbox accessories, and M4 accessories. This is the black airsoft gun model 180899 Gun package includes a 9.6v 1100 Mah nun-chuck battery, trickle battery charger, and 300rnd hi-cap magazine. Velocity: 390 FPS w/.20g BBs **Please note the hicap mags that are included have pretty tight tolerances where the mag release catches it. You may have to wiggle the magazine angle to lock into place properly. Not a big problem, but something to be aware of. Other magazine brands do not have this issue, so you can use other mags just fine.