A&K Hurricane Type 416 Style Crane Stock Set for M4

5-position adjustable stock Fits 9.6v 1600mAh small butterfly type batteries 6 metal alloy polymer buffer tube Color: Black Material: Injection molded polymer/ Metal alloy Compatibility: TM, G&P, and other compatible M4 / M16 series Airsoft AEGs. (May require modification to fit certain brands) Package Includes: Stock, buffer tube Manufacturer: A&K