<P> The world 's first automatic rifle was the Italian Cei - Rigotti . Introduced in 1900 , these 6.5 mm Carcano or 7.65 × 53mm gas - operated , selective - fire , carbines attracted considerable attention at the time . They used 10 - , 20 - and 50 - round box magazines . The Cei - Rigotti had several failings , including frequent jams and erratic shooting . In the end , no Army took an interest in the design and the rifle was abandoned before it could be further developed . </P>
<P> The world 's first automatic rifle was the Italian Cei - Rigotti . Introduced in 1900 , these 6.5 mm Carcano or 7.65 × 53mm gas - operated , selective - fire , carbines attracted considerable attention at the time . They used 10 - , 20 - and 50 - round box magazines . The Cei - Rigotti had several failings , including frequent jams and erratic shooting . In the end , no Army took an interest in the design and the rifle was abandoned before it could be further developed . </P>
when was the first fully automatic gun made
when was the first fully automatic gun made
1900
1900