FN Five-seveN® 5.7x28mm 20-Round Factory Magazine

This is a Factory FN Five-SeveN magazine with a 20-round capacity.
The FN Five-SeveN redefines futuristic. Constructed primarily from their high-strength polymer and chambered in a proprietary, purpose-built round, the Five-SeveN set a new standard for lightweight firepower.
This FN Factory Five-SeveN magazine plays a large part in that innovation; packing a massive 20-round capacity without having to deal with finicky extensions or baseplates, these Five-SeveN mags offer incredible capacity without giving up any reliability.
Constructed from the same material as their namesake pistol, these mags have polymer bodies, followers, and baseplates, helping keep weight to a minimum. The baseplates are user-removable for cleaning and maintenance, and the left side of the magazine features witness holes to allow you to quickly check your remaining ammunition.