Jan Valentine's Modified P90

A Modified P90 is Jan Valentine's signature weapon for much of the series. He is seen using two of these set to fully automatic when he encounters the Hellsing troops.

Usage
Jan used these two guns during the Valentine Brother's raid on the the Hellsing compound. He takes down dozens of soldiers using these guns, easily slaughtering the ones his Ghouls hadn't already killed. They are later abandoned during the fight between himself, Walter C. Dornez, and Seras Victoria.

Specifications
The real-life P90, a personal defense fire-weapon (PDW) manufactured by FN Herstall in Belgium, was developed somewhere between 1986 and 1991. It features several innovations such as a top-mounted magazine and ambidextrous controls, notably taken advantage of by Jan Valentine when he wielded two of them in each hand at once. It is also notable that the ejection port for shells is located on the underside of the gun. Jan's modified version seems to have a suppressor as well, but neither the sound of the gunfire nor the amount of damage seems to be suppressed, as it sounds similar to a standard assault rifle when fired and tears through the Hellsing soldiers. However, it must be considered that Jan emptied a considerable amount of bullets into them.