Arthurian Airsoft got their own compact AEG called the Excalibur Offspring and it's available at SOCOM Tactical... "The Arthurian Airsoft Excalibur Offspring model comes with a thin MFT type stock. You can easily fit a 7.4v stick battery in the stock tube. To install the battery, simply pull the adjustment lever down and slide the stock off to gain access to the stock tube. There are 6 positions available to adjust the stock to, giving you plenty of choice for shooting configuration.

One of the most impressive features of the stock system of the Excalibur series is the E&C quick change spring system. To change the spring, you simply need to unscrew the ring on the stock tube, rotate the stock tube 45 degrees and pull it off. After that unscrew the knurled screw at the back and the spring & spring guide will pop out. Be careful not to let it fly across the room, it may release with some force. Ultimately, this process only takes about 30 seconds.

Features:

• Overall length: 590mm - 674mm - Outer barrel length: 6-inches
• Inner barrel length: 180mm
• Average FPS: 335-340
• Thread size: -14mm
• Main body material: Aluminium
• Colour: Black
• Magazine size: 300 High capacity magazine"