Keep your FN P90 fed and running at the range for an affordable price with the KCI USA P90 5.7x28 50-Round Magazine from GunMag Warehouse. This aftermarket PS90 magazine is constructed from durable polymer for unparalleled strength and durability and it features a translucent smoke finish allowing you to easily monitor capacity and spend more time shooting and less time counting at the range. The steel spring and durable polymer follower ensure reliable and smooth feeding in high-stress target environments or defensive situations.