Luke Valentine's Modified M1 Garand

A shortened M1 Garand  (pronounced Gehr-and, after the French-Canadian firearms designer) is the weapon of choice for Luke Valentine for much of his appearance of the series. It is a modified version having a sawn-off barrel, and in the animated series, a shortened stock that gives it a pistol grip.

Usage
Luke carries two of these hidden in his jacket and uses them to fire two bullets in Alucard during The Valentine Brothers' siege on Hellsing HQ. Although he did not miss and it was very close range, Alucard was almost unharmed from the encounter.

Trivia

 * 1) Such a conversion in real life would essentially require a complete rebuild of the working parts of the rifle, since the Garand's operating piston is a rod that runs almost the entire length of the barrel, and a Garand gas piston shortened this much while firing the same round would probably explode.