GM Tatico are carrying the KWA KM4 SR7 AEG at their store and they did a video to show you what they discovered... "In this video, we'll talk a little about the KWA KM4 SR7 Airsoft Rifle. Designed for players looking for performance and upgradeability. The full-metal gearbox version 2, upgradeable long-type motor, and adjustable hop-up ensure durability and accuracy. Ideal for those looking for a robust AEG ready for customization."