The 
RAVEN R226 Extended Gas Magazine
 is a 48-round capacity, full-metal magazine designed for the Raven R226 series of gas blowback airsoft pistols. It is also compatible with WE F-series GBB airsoft pistols.
 
Key Features and Details
Capacity: It has an extended 48-round capacity, which is significantly larger than the standard 21-round magazine, allowing for longer engagements.
Construction: The magazine features a durable full-metal (specifically, CNC aluminum) body with polymer feed lips and followers.
Gas Efficiency: Due to its larger, deep double-stack reservoir, it offers improved gas stability and shot performance, with reduced FPS drop-off compared to standard magazines.
Maintenance: The gas inlet valve is accessible by sliding the baseplate to the side, and the baseplate can be removed for maintenance.