capacity to 8 rounds, and was fitted with an adapter allowing use of the standard M7 bayonet for the M16 rifle. MCS (Modular Combat Shotgun) – A new modular variant of the Model 870 which can be quickly modified with different barrels, magazine tubes, and stocks for different purposes, such as urban combat and door breaching. Police Magnum – The law enforcement version of the Model 870, the Police Magnum, is chambered in 12 gauge 3" magnum. It can be ordered with two options: a blued or Parkerized steel finish. These models feature a sturdier sear spring, carrier latch spring, and a forged steel extractor (as opposed to the metal injection molded extractor used on the 870 Express variants). The receivers are stamped with the insignia "Remington 870 Police Magnum" beginning 2014. They are equipped with Police Magnum-specific walnut hardwood or polymer stocks which are fitted with sling mounts. The walnut stocks omit the checkering that is present on the Express/Wingmaster variants. 870 Police Magnum models come with matching walnut or polymer pumps that are decreased in length to prevent interference with most vehicle-mounted rack systems. The shortened pump also allows quick visual inspection of the internal magazine regardless of what position the pump is in, whereas the optional lengthened sport-type pump on other models partially blocks the loading port when it is pulled to the rear position. Police Magnum models are available with 18" or 20" barrels, with or without iron rifle sights, and have a standard magazine tube capacity of four rounds. They can be ordered with a two or three round extended magazine tube from the factory, bringing total capacity to 7 (+1) shotshells (18" barrel) or 8 (+1) shotshells (20" barrel). All Police Magnum barrels come with an improved cylinder choke unless specially ordered to fit the user's needs. Special Purpose Marine Magnum – Corrosion resistant nickel-plating covering all internal and external metal parts with black synthetic furniture. Special Purpose Waterfowl - Matte, Parkerized finish on barrel and receiver, satin-finished American walnut stock and forearm with cut(not pressed)checkering, sling swivels, a camo sling were standard. It was a 3" gun. This model is sometimes confused with the Express, but it was more closely related to the Wingmaster line, with a commensurate price tag. Sportsman 12 – Made between 1984 and 1986 as a cheaper alternative to the Wingmaster, prior to the release of the Express. Lesser