It is able to take green gas

and other similar M4 AEG magazines)

Compatibility: Works with Tokyo Marui and other similar Hi-Capa series GBB

Power Source - KSC/KWA derived proprietary ERG system

COMPATIBILITY: MARUI G17/18C

Lancer Tactical 4x32 Magnified Scope w/ Micro Red Dot AEG Mid-Cap Magazine It is able to takeFeatures Aluminum body construction that is durable and versatile adjustable windage and elevation makes for easy zeroing O ring sealing and nitrogen filled ensures 100% water and fog proof High quality crystal clear lenses Additional micro red dot on top of the main scope allows for quicker target acquisition Specifications Construction: Aluminum Body Magnification: 4 x 32 Objective Diameter: 32mm Compatibility: For 20mm Picatinny Rails Color: Black