The CAA Airsoft M4 Advance Carbine Black is an officially licensed AEG from CAA (manufactured by King Arms OEM). Built with durable nylon fiber and engraved with official CAA trademarks on the receiver, handguard, and magazine. It features a 14.5-inch nylon fiber outer barrel and a lightweight M4S1 Picatinny Rail System, making it an ideal choice for airsoft players seeking both durability and performance.