MAB PA-15 pistol MAB PA-15 pistol The MAB PA-15 ("Pistolet Automatique 15", also known as the "P-15" or "P.15 Standard") was designed by the Manufacture d'armes de Bayonne. The model number, 15, refers to the magazine capacity. When introduced, this was the first pistol holding a greater number of rounds than the 13-round Browning Hi-Power. The PA-15 was introduced in 1966 along with a short-lived 8-round version with a single stack magazine, the P-8. The PA-15 was designed for commercial sale, primarily for export as French laws severely restricted the possession of "military-caliber" arms (which included the ubiquitous 9mm). The pistols were proofed
British Standard Pipe 18, although of these only 15 are included in ISO 7 and 24 in ISO 228. The size number was originally based on the "inner" diameter (measured in inches) of a steel tube for which the thread was intended, but contemporary pipes tend to use thinner walls to save material, and thus have an inner diameter larger than this nominal size. In the modern standard metric version, it is simply a size number, where listed diameter size is the major outer diameter of the external thread. For a taper thread, it is the diameter at the "gauge length" (plus/minus one