P90

Better known as the FN P90. The gun used by Solidus to execute Olga and also part of the weaponry assigned to the Arsenal Tengu. Soludus however had the bullets in his P90 modified to fire explosive rounds (which explains how he was able to pierce the armor of the Metal Gear RAYs and why his missing bullets exploded on the deck of Arsenal Gear as he was shooting at Ocelot). The FN P90 is also in use by Solid Snake during his operations in the Middle East. It is likely that he acquires it from one of the Heaven Soldier Frogs.

A new concept light firearm developed fo soldiers who cannot carry full-size light arms, such as aircraft crews and rear support units. The P90 is designed to provide enough firepower to pierce helmuts and bulletproof armor at a range of 200 meters. The chamber is behind the pistol grip in bullpup style, but the cartriges are ejected downward, allowing it to be fired the same way by left- and right-handed users. Fires 5.7mm x 28 ammo. Holds 50 rounds.