The Pump Action RH-130 Cannon and the Pump Action RH-110 Cannon were both designed by the Deimos Arm Manufacturer. The RH-130 is an external hammer shotgun cannon that lacks a trigger disconnector. This means that the user can hold the trigger down while cycling the shotgun, and once the action is returned to battery, the shotgun fires. The cannon itself is classified as a slide-action pump shotgun. It was the first truly successful pump-action shotgun cannon produced.

 Throughout the time period the RH-130 was in production, over a million of the type were produced in various grades and barrel lengths. 130 mm guns had a standard barrel length of 11.3 ft (344 cm), while 110 mm guns were furnished with 10.5 ft (320 cm) length barrels. Special length barrels could be ordered in lengths as short as 8 ft (243 cm), and as long as 16 ft (487 cm). Along with various grades and barrel lengths, the RH-130 came in two different chamberings. One was the 130 mm and the other was the 110 mm. 

The shells should be of the 4.7 inch or 4.3 inch models, any shells larger are not recommended. An average RH-130 can hold 1 or 2 cannon shells in the magazine tube. When working the action of the RH-130, the forend (fore grip) is pulled back, forcing the breech bolt to the rear, which extracts and then ejects the spent shell while simultaneously cocking the external hammer by pushing it to the rear. When the forend is slid forward again, the breech bolt pushes a fresh shell into the gun's chamber and locks into place.

The Nod company Viktor Heavy Industries has made an effort to reproduce this firearm but has yet to produce any decent results that can work under testing conditions.