The Model A-17 Turret was produced by the Sperry Gyroscope Company, Great Neck, New York for the B-32
"Dominator" bomber, during WWII. The A-17 Turret was an armor-protected, ball type turret, designed for mounting in either
the nose or tail of the aircraft. It housed the necessary equipment for the direct firing of two .50 caliber AN-M2 machine-guns.
The Type K-11 Compensating Sight was used in the nose turret and the K-10 Compensating Sight in the tail turret.


