Metal alloy construction
Excellent magazine gasification
Compatibility: Tokyo Marui, Armorer Works, 
KJW, WE, Army Armory
series Hi-Capa Airsoft pistols
Enhanced nylon fiber base pad
 
Please note: The item picture shows the extended and standard size magazines, the extended magazine can be found here.
 
To clarify the standard size magazines are the smaller of the two pictured.