The RMb-93 is a pump-action

shotgun A shotgun (also known as a scattergun, peppergun, or historically as a fowling piece) is a long gun, long-barreled firearm designed to shoot a straight-walled cartridge (firearms), cartridge known as a shotshell, which discharges numerous small ...

designed and manufactured by the

KBP Instrument Design Bureau JSC ''Konstruktorskoe Buro Priborostroeniya'' (KBP) ( Joint-Stock Company - Instrument Design Bureau) is one of the main enterprises in the field of Defense industry of Russia, Russian defense industry, based in Tula. It is engaged in designing ...

Tula, Russia Tula (, ) is the largest city and the administrative center of Tula Oblast in Russia, located south of Moscow. Tula is located in the northern Central Russian Upland on the banks of the Upa (river), Upa River, a tributary of the Oka (river), Ok ...

. It is the baseline model of the ''Rys'' ("

Lynx A lynx ( ; : lynx or lynxes) is any of the four wikt:extant, extant species (the Canada lynx, Iberian lynx, Eurasian lynx and the bobcat) within the medium-sized wild Felidae, cat genus ''Lynx''. The name originated in Middle Engl ...

") series of shotguns, taking the model name of Rys-K. The RMb-93 has been conceived as a combat weapon for

Special Forces Special forces or special operations forces (SOF) are military units trained to conduct special operations. NATO has defined special operations as "military activities conducted by specially designated, organized, selected, trained and equip ...

and

Police The police are Law enforcement organization, a constituted body of Law enforcement officer, people empowered by a State (polity), state with the aim of Law enforcement, enforcing the law and protecting the Public order policing, public order ...

units that might face

Close Quarters Battle Close-quarters battle (CQB), also called close-quarters combat (CQC), is a close combat situation between multiple combatants involving ranged (typically firearm-based) or melee combat. It can occur between military units, law enforcement and cr ...

situations. The weapon was engineered to reduce the size as much as possible.

Description

The working system of the RMb-93 is itself an odd slide-action operation called "Inverted Cycle", similar in concept to the one used in the South-African Truvelo Armoury

Neostead The NeoStead 2000 (NS2000) is a bullpup combat shotgun developed by Truvelo Armoury of South Africa. Production of the shotgun began in 2001 and the first models were made available in October of that same year. It is notable due to its unusu ...

shotgun (the only other mass-produced firearm to be based upon this system). The feeding tube is placed over the barrel rather than under it, and is accessed through a flip-up cover on the top of the receiver. Once the weapon is loaded, a shell is chambered by pushing the slide forward-then-backward, instead of the standard backward-then-forward motion of the forend found on most

pump-action Pump action is a type of manual firearm action that is operated by moving a sliding handguard on the gun's forestock. When shooting, the sliding forend is pulled rearward to eject any expended cartridge (firearms), cartridge and typically to co ...

weapons. Having the RMb-93 a fixed breech face and movable barrel, the operation moves the entire barrel assembly. Once a round is fired and another is chambered, the empty shell falls downwards to the ground, pushed by its own weight. The design of the RMb-93 "Rys-K" carries several advantages: the ejection system makes the gun fully ambidextrous, and the magazine located over the barrel gives the shotgun a low

center of mass In physics, the center of mass of a distribution of mass in space (sometimes referred to as the barycenter or balance point) is the unique point at any given time where the weight function, weighted relative position (vector), position of the d ...

and reduces upward recoil. The main drawback of the overall design stands in the fact that the weapon has a pistol grip with upfolding metal stock, which when folded finds itself right up the feeding tube. The RMb-93 thus can not be reloaded without extending or removing the stock, a disadvantage if it is being used tactically with a folded stock.

Variants and commercial availability

The RMb-93 "Rys-K" shotgun is commercially available to civilians in Canada, Russia, Italy, and possibly in other Countries. For the civilian distribution in Russia and Canada, the shotgun is provided with a stock disconnector that prevents it from firing if the stock is not extended, so to comply with local laws and regulation about the minimum legal overall length for civilian firearms. Additionally, KBP manufactures several variants of the "Rys" shotgun series for the civilian distribution. The RMb-93 "Rys-K" itself is manufactured with Phosphatized finish to resist salt corrosion (for use in maritime environments). The RMO-93 ''"Rys"'' is a purely sporting variant with wooden thumbhole stock and either wooden or synthetic slide-forend; very similar to it is the ''"Rys-OT"'' variant has a longer barrel, with either a synthetic or wooden sliding-forend, and standard wooden shotgun stock. The RMF-93 ''"Rys-F"'' shotgun is a longer-barreled variant of the RMb-93 "Rys-K", plus equipped with the above-mentioned stock disconnector. RMS-93 Rys (Lynx" ( p uzhё m The store on hotniche 93 years) - the civilian version of RMB-93. Available in the following versions: * Rys-F: has an overall length of and a barrel, with a folding butt up and forward (in RMB-93). * Rys-O: has an overall length of and a barrel, with a wooden buttstock. ** Rys-OC: has an overall length of and a barrel chambered for 12/76. * Rys-K: has a forward folding buttstock and a barrel shortened to (in this version, the RMS-93 is similar to RMB-93, but it has an auto-lock trigger mechanism that engages when the buttstock is in the folded position). * Rys-U: has an overall length of and a barrel, with a wooden thumbhole buttstock. * Rys-CA: has an overall length of and a barrel, chambered for 12/76. * Rys-L: has an overall length of and a barrel, with a wooden buttstock. ** Rys-LC: has an overall length of and a barrel, chambered for 12/76.

Users

* - RMF-93 "Rys-F" is allowed as civilian hunting weapon * - RMF-93 "Rys-F", RMO-93-2 "Rys-K" and RM-96 "Rys-U" are allowed as civilian hunting weapon * - RMO-93 and RMF-93 "Rys-F" are allowed as civilian hunting weapon since August 1996 Also, they were used in

private security companies A private security company is a business entity which provides armed or unarmed security services and expertise to clients in the private or public sectors. Overview Private security companies are defined by the U.S. Bureau of Labor Statistic ...

until 1 March 2006"''3. Установить, что огнестрельное оружие, приобретенное в соответствии с законодательством Российской Федерации негосударственными (частными) охранными предприятиями до вступления в силу настоящего постановления и не включенное в перечень видов вооружения охранников, утвержденный постановлением Правительства Российской Федерации от 14 августа 1992 г. N 587 (с изменениями, внесенными настоящим постановлением), может находиться на вооружении охранников до 1 марта 2006 г.''"
Постановление Правительства РФ № 179 от 4 апреля 2005

References

Sources

External links