The KMP Basic is another example of a high quality AEG from Elite Force. This full metal M4 features official Elite Force trademarks and a flat top upper receiver. The full metal body very solid and give the gun a very realistic feel. The only external parts that are not metal are the front handguard, pistol grip, and retractable stock. These parts are made of a durable polymer. The stock clicks into place nicely when and the handguard fits snugly inside the delta ring. The battery (sold separately) is contained within the handguard. We recommend a 9.6v 1600 mAh NiMH battery to get the best performance out of this AEG. The upper receiver has a built in rail which allows the addition of a variety of optics. The included magazine is a 350 round metal high cap and the gun is compatible with virtually all TM compatible M4/M16 magazines. Internally the gearbox and one piece hop up unit are both full metal. The V2 gearbox is fully upgradeable with standard V2 parts should upgrades be desired. Overall this is a very solid option for anyone looking for a M4 style AEG. Complete with a 60 day warranty from Elite Force you really can't go wrong.