A&K Hurricane Type 416 Style Crane Stock Set for M4 Motor Grips Matrix M-LOK GBB M4 Gas

Matrix M-LOK GBB M4 Gas Blowback Rifle w/ WA System Specifications:

Integrated Ambidextrous Sling Swivel Mount Points

you wiggle the front adjustment (not receiver button like a normal AK) to expose the battery compartment

Action Army AAP01 GBB Part -  Steel RMR Adapter and Front Sight Set

which is made for stock guns

A&K Hurricane Type 416 Style Crane Stock Set for M4 Motor Grips Matrix M-LOK GBB M4 Gas5 position adjustable stock Fits 9. 6v 1600mAh small butterfly type batteries 6 metal alloy polymer buffer tube Color: BlackMaterial: Injection molded polymer Metal alloyCompatibility: TM, G&P, and other compatible M4 M16 series Airsoft AEGs. (May require modification to fit certain brands)Package Includes: Stock, buffer tubeManufacturer: A&K