Produced between 1927 and 1941. Blade front and tangent rear sights, graduated to 500 meters, with the front sight mounted on a muzzle ring, a large ring hammer, thumb safety, Spanish proofs on the right side of the barrel, chamber and frame, ""ASTRA" AUTOMATIC PISTOL CAL. 9MM" on the left side of the frame, 12-groove grips, lanyard ring and a slotted backstrap.