Guarder is a Taiwanese Company that specializes in manufacturing many different components for Airsoft guns, including but not limited to AEG parts, GBB pistol slide kits, full cylinder tune-up kits, and more. For example, the Guarder Tappet Plate is widely considered the gold standard for AEG upgrades and is trusted by enthusiasts worldwide when upgrading their AEGs. Beyond this, they are manufacturing high-strength and durable components for the most famous airsoft models, such as gas blowback pistols and rifles, making them widely known as one of the best aftermarket upgrade manufacturers in the world.