at 40 meters. There are four different Magazine Extension Tubes manufactured for the SPAS-12: The 5-shell was designed for the 18" barrel. The 6-shell was designed for restriction on the standard 21.5" Sporting Purpose model. The 7-shell was designed for the 19 7/8" Barrel. The 8-shell was designed for the 21.5 Special purpose model. Many choke types original and aftermarket exist for the SPAS-12. A 44mm grenade launcher used by France was used for explosive grenades capable of a range of 150 meters. A factory shot diverter that spreads shot vertically or horizontally was originally included with earlier model SPAS-12's, There are many known reproduction diverters. SPAS-12, SAS-12 and LAW-12 model differences Four different stock styles exist. The first version of the SPAS-12 was manufactured with a wooden detachable stock and a standard grip. Later models included the folding metal stock with hook. After the United States imposed import restrictions on the SPAS-12 in 1989, a version was released in 1990 with the synthetic hollow fixed stock and a six-shell capacity to comply with federal regulations for sporting purposes. Four different factory barrels were manufactured for the SPAS-12. (Very Rare) "shorty" made for Law Enforcement/Military originally distributed mainly in France. This is the only known model to receive the pistol grip safety. (Very Rare) 19-7/8 in. found scattered on a very few of the 1983 "AL" proofed SPAS-12 Shotguns. These were made for Law Enforcement/Military originally. (Common to the United Kingdom) 21-1/2" as a one piece barrel converted to a 24" UK legal barrel. This barrel adds with a choke tube brazed or silver-soldered in place). (Most Common) The standard 21-1/2" with sight blade muzzle ended on barrel for the special purpose model or the pushed back sight blade with brazed extension for the sporting purpose model. The Franchi SPAS-12 came equipped with a non-adjustable circular aperture rear sight and a large, non-adjustable blade foresight integrated into the barrel. The LAW-12 was a semi-automatic only and the SAS-12 was a pump action only. These three "sister" shotguns accepted all SPAS-12 components, notably trigger groups, barrel threaded attachments and stocks. The various magazine extension tubes of the LAW-12 and SAS-12 were never designed to be interchangeable with the SPAS-12 as this would cause issues with the gas selector switch moving from Auto to Pump action on the SPAS-12 model. The extensions have been known to spin off the front of the