Changes

|manufacturer = Remington ArmsCompany

|voiceactor = {{voice actor name|Morohoshi Sumire}}|releasedon= {{doll_server_alias|server=CN|alias=M870}}, {{doll_server_alias|server=TW|alias=M870}}, {{doll_server_alias|server=KR|alias=M870}}, {{doll_server_alias|server=EN|alias=M870}}, {{doll_server_alias|server=JP|alias=M870}}

| weaponinfo = The Remington Model 870 was the fourth major design in is a series of pump-action shotgun manufactured by Remington pump shotgunsArms Company, LLC. It is widely used by the public for sport shootingsports, hunting, and self-defense and used , as well as by numerous law enforcement agencies and military organizations worldwidethe world over. <ref name = "870 wiki">[https://en.wikipedia.org/wiki/Remington_Model_870 Wikipedia article for the Model 870]</ref>

The Model 870 was the fourth major design in a series of pump shotguns manufactured by Remington. The first was the Remington Model 10, designed by American firearms designer John Pedersen in 1908. While a good first step, the Pedersen design was more fragile than other shotguns at the time. In 1913, John Browning designed what would become the Remington Model 17. The Model 17 was a much more robust design, and was reliable enough that American firearms manufacturer Ithaca would use it as the base for their highly successful Ithaca 37 model of shotgun. While the Remington Model 17 enjoyed some success, the original Browning design was chambered in 20-gauge and ejected downwards, and Remington wanted a side-ejecting 12-gauge design that could compete with Winchester. Thus, the Model 17 was modified to meet Remington's requests by sizing the gun up for the larger cartridge and changing the gun to eject out the side. This resulted in the Model 31, Remington's first side-ejecting pump-action shotgun. The Model 31 is considered by many shotgun connoisseurs to be the 'ne plus ultra' of pump shotguns, with its smooth "ball-bearing" slide action. Despite being well-received, its many machined and handfitted parts made the gun expensive to manufacture. Consequently, it struggled in sales compared to the Winchester Model 12. To achieve better sales, Remington introduced the Model 870 in 1950, which was more modern and reliable in its construction, easier to take apart and maintain, and relatively inexpensive. The 870's design is typical for pump-action shotguns, consisting of a bottom-loading side-ejecting receiver and a tubular magazine located under the barrel. It has dual action bars, an internal hammer, and a bolt which locks into an extension in the barrel. The action, receiver, fire control group, safety catch, and slide release catch of the Remington Model 870 shotgun are similar to those used on the Remington Model 7600 series pump-action centerfire rifles and carbines. The basic fire control group design was first used in the automatic Model 11–48. Several parts of the 870, such as buttstocks and magazine tubes, will interchange with the semi-automatic Remington 1100 and 11–87. There are hundreds of variations of the Remington 870 in 12, 16, 20, and 28 gauges, as well as a .410 bore option. Remington introduced the 28-gauge and .410 bore models on a new scaled-down receiver size in 1969, and in 1972 a 20-gauge lightweight version was introduced on the same sized receiver. All of the smaller gauges today are produced on that scaled-down receiver. The most popular gauge offering for the 870, however, remains the 12-gauge version. The three most well-known models of the 870 are likely the 870 Express, the 870 Wingmaster, and the 870 Police Tactical. | design =M870 is dressed as a patrol police officer, owing to the real Model 870's popularity with law enforcement agencies. She wears a sheriff's badge, a fur-lined jacket, an officer's hat with devil horns, and a belt with shell holders. Also located on her belt is a "Route 666" badge (a reference to the famous Route 66 highway, although with an added '6' in keeping with the 'devil' motif). The most striking feature of her design is undoubtedly her long mechanical tail. This additional appendage has a red spike-shaped device attached on the end, which is rumored to be a seismometer. Her shield is plastered with Americana stickers and white lettering that says 'S.H.P.', which apparently stands for "Satan Hellway Patrol".

| trivia =* During Vietnam War, M870 was modified the original tubular magazine into detachable magazine feed system. The idea behind of concept is Carroll Childers, an engineer and the officer of Virginia Army National Guard. Childers received a complaint from the Marines about the nature of pump-action system, where they couldn't hit a single enemy and constantly inserting the shell one by one. The surviving unit of modified M870 used 10-rounds detachable magazine while the barrel itself was missing. This concept finally created a fully-automatic and large magazine shotguns, known as SOW(Special Operation Weapon).<ref>[http://www.smallarmsreview.com/display.article.cfm?idarticles=2381 Modified M870 article on Small Arms Review]</ref>*Although M870's skill is a shielding skill, it functions very differently compared to the other shield using T-dolls such as {{doll name|S.A.T.8|SG|5}}, {{doll name|MDR|AR|5}}, {{doll name|HS2000|HG|5}} , and so on. The way M870's shield works is that it gives her a "DefenceDefense" Value value based on her skill level , and while so long as her Defence "Defense" is at its max value, she'll reduce all damage received by 100%, since . Since her skill decay's decays her "Defence " by 100 points per second, its it effectively lowering lowers the percentage of damage that is reduced.**The T-doll's {{doll name|Thompson|SMG|5}}, {{doll name|G36C|SMG|SMG|5}} and {{doll name|MP5|SMG|4}}, received changes during a client update which also changed how their shields work, they . They now function similar to how M870's shields work shield skill works, in that their skills give them a shield with a Defence "Defense" value of 9999, blocking all incoming damage by 100% as long as there is no enemy which can lower that value.*The giant pumpkin the 870 finds herself in during the Halloween celebration originally belonged to {{doll name|XM8|AR|4}}, who lent it to {{doll name|G36C|SMG|5|costume=costume3}}<ref>G36C Costume Story: Burning-Eyed G36C</ref>**{{doll name|KSVK|RF|4|costume=costume2}} stuffed {{doll name|M870|SG|5|costume=costume1}} into it during a test of courage<ref>M870 Costume Story: Pumpkin Bunker</ref> <ref>KSVK Costume Story: Darkside of the Moonwalk</ref>.**{{doll name|QBU-88|RF|5|costume=costume1}} tried to free her from the gourd-y prison, but failed.**{{doll name|Type 97 Shotgun|SG|4|costume=costume1}} finally managed to set her free by blasting the pumpkin with her gun.*M870 was one of the Dolls to be featured in the canceled game [[Girls' Frontline: Glitch Land]].