The CP-46 was the first Deimos Arms cannon to enter service. It featured a long barrel for increased accuracy, a skeleton stock to reduce weight, and used the heavy 105 mm round. However, the rifle was complicated to reload. The CP-46 fired only one shot and would then have to be manually reloaded. To do this, the user had to rotate, pull back, remove part of the interior assembly (whose shape resembles a signal-flare handgun), and insert another round. This tedious task took time to master and slowed the weapon's rate of fire. Other difficulties such as high recoil also plagued the CP-46. The recoil problem was solved with the addition of a barrel that recoiled back after each shot. The design was inspired by artillery cannons, which face the same impediment. Still, the Deimos Arms cannons need to be specially made, high-strength telescopic gunsights. Improvements, such as the addition of extra weight and a longer barrel, led to the CP-46D1 variant, but at 3,000 lbs (1360 kg) its combat weight was deemed excessive.

An auto loading version of the CP-46 was later produced. Dubbed the CP-47, designers reduced its barrel length and weight. An even shorter paratrooper variant dubbed CP-47D2 made it more favorable, especially because it could be used on the go, thanks to the advanced recoil mechanism. A fiber optic technology scope and eyepiece imaging system was developed (or at least proposed) to allow the use of an on-the-go version of CP-47D2 for VIP protection purposes. Although the 108 mm AP rounds were considered one of the most powerful, Deimos Arms decided they were not good enough. They then ordered the development of the CP-48, with a larger 114 mm round. With this new destructive capability also came increased accuracy and range, making the CP-48 the most popular of the Deimos Arms cannons.

Nevertheless, three more models were to follow. The CP-49 and CP-50 sought to become improvements on the CP-47, with stronger materials and better reliability. The new versions have a more rectangular look and are usually finished in blackened steel finish, while the CP-47, CP-48, and CP-49 were usually painted an olive-green color.

The CP-48 is strictly an anti-tank cannon because while the 114.5 mm round is extremely powerful, its accuracy degrades rapidly at longer ranges. Its high destructive power is efficient in taking out hovering helicopters, APCs or mobile radar stations.

Finally, the Deimos Arms Manufacturer concluded with the CP-52l. This cannon used the 105 mm APHE rounds and Sabot rounds, like the CP-48 and CP-50, but featured stronger parts, lighter weight, shorter length and an improved scope.