RSh-12
Illustration of the RSh-12
Type	Revolver
Place of origin	Russia
Service history
In service	2014-present
Used by	Federal Security Service
Production history
Designer	Viktor Zelenko
Designed	2000
Manufacturer	KBP Instrument Design Bureau
Produced	2000–present
Specifications
Mass	2.2 kg (4.9 lb)[1]
Length	357 mm (14.1 in) with no stock and no silencer[1] 462 mm (18.2 in) with folded stock[1] 679 mm (26.7 in) with unfolded stock[1] 830 mm (33 in) with unfolded stock and a silencer[1]
Width	53 mm (2.1 in)[1]
Height	159 mm (6.3 in)[1]
Cartridge	12.7×55mm STs-130
Action	Double-action revolver
Feed system	5-round cylinder
Sights	adjustable dioptric sight and a fixed sight with a V-shaped slot

The RSh-12 (Russian: Револьвер Штурмовой калибра 12,7, romanized: Revolver Shturmovoy kalibra 12.7, lit. 'Assault revolver calibre 12.7') is a Russian-made revolver chambered in 12.7×55mm STs-130.

It fires from the bottom chamber of the cylinder (like the Chiappa Rhino and Mateba Autorevolver) rather than the more common top chamber, and is chambered for the same ammunition as the ShAK-12 battle rifle and VKS rifle.

• RSh-12: Chambered in 12.7×55mm.
• RSh-9: Chambered in 9x39mm.^[2]

Originally introduced in 2020, by late 2021 these carbines are still in final stages of development, and there’s no firm information on their future availability and pricing.

• MTs-569: Chambered in 12.7×55mm.
• MTs-570: Chambered in 9x39mm.^[3]

•  Russian Federation

• ASh-12.7
• Mateba Autorevolver
• Chiappa Rhino
• MP-412 REX
• Rifle-caliber handgun

• Meet The RSh-12: The Most Powerful Revolver In The World is Russian
• Штурмовой револьвер РШ-12 из Тулы
• Most Powerful Revolver Pistol