Description
The Browning Hi-Power is a single-action, semi-automatic pistol available in the 9×19mm Parabellum and .40 S&W calibers. It was based on a design by American firearms inventor John Browning, and completed by Dieudonné Saive at FN Herstal.
The L9A1 was the British designation for the military version of the post-1962 Hi-Power, and is marked 'Pistol Automatic L9A1' on the left side of the slide. It started to replace Inglis variants in British service from the late 1960s, and the two types remained in service together until the Inglis variants were finally retired in the late 1980s. The L9A1 was upgraded with the more ergonomic Mk2 ambidextrous safety and grips. The L9A1 was also widely used by other Commonwealth armed forces. The Hi-Power was the pistol issued to the British Special Air Service throughout the Cold War era. It was phased out in 2013 and replaced with the Glock 17 .
Source: Wikipedia