The GA Personal Defense Weapon (PDW) is a select-fire sub-carbine made by the Philippine Government Arsenal, based on the M4 carbine/M16 rifle, which chambers the locally developed 7.62×37mm Musang cartridge.

[1] 50 prototypes of the weapon underwent field testing and evaluation with Special Operations units of the Armed Forces of the Philippines (AFP) in June 2015.

[2] Designed to replace the MP5 and short-barrelled 5.56mm carbines in AFP service, its design objectives included increased lethality over subsonic 9mm and 5.56mm cartridges, improved controllability, reduction in size and weight, and a maximum effective range of 300 meters.

[1][2]