Weapon Name- M90 Close Quarters Combat Shotgun
Round Type- 8 Guage (21.21mm)
Over-all length- 46.5 inches (1183mm)
Barrel length- 24 (609.6mm)
Weight- 5.4 kg (11.9 lbs) unloaded, 13.2lb loaded
Rate of Fire- Pump Action
Feed Mechanism- Over Barrel Tube
Round Capacity- 8 + 1
Effective Range- 50 Meters
Range- 100 Meters, 200 meters slug or explosive
Accuracy- N/A, 3 MOA
Accessories- Picanty Rail
Quick switch firing mechanism- N/A
Scope/Sights- Picanty Rail, Iron sights
Muzzle Velocity- 380 m/s, 56.70 (2 ounces) of shot, 4093 Joules. 460 m/s Sabot and Frag
Firing System- Pump action, Single to mossberg except top fed
Miscellaneous/electronic information- Essentially an 8 guage top fed oversized mossberg style shotgun, featuring a number of recoil reducers and other features to create the most effective shotgun available
Basic Information
Essentially an 8 gauge top fed oversized mossberg style shotgun, featuring a number of recoil reducers and other features to create the most effective shotgun available. Each shell is approximately 3.5 inches long, holding around 56 grams of shot and is around .15 pound each, with a polysynthetic plastic shell. They have around 4100 joules each. Generally speaking, the standard round is .00 buckshot with around 15 depleted uranium/lead pellets (90/10%), at approximately 3.75 grams each. Sabot, Birdshot, all lead and Explosive rounds are available, along with other characteristic round such as flare rounds.
The weapon is strange, in that it's top fed, although it otherwise functions like a typical mossberg pump action shotgun, but it is enlarged to fit the 8 gauge round. The weapon sports a polygonal flow formed cobalt chrome barrel, as well as some other aeronautics grade cobalt chrome pieces. The weapon specifically sports an enlarged hydraulic recoil buffer and some depleted uranium dead weights in the semi-adjustable stock, to make the weapon back heavy and help absorb recoil. In part becuase the weapon is significantly larger than a typical 12 gauge shotgun (13.2 lb loaded) and has a large hydraulic recoil buffer similar to the one found in the M240 in a relativley firmly placed fixed stock, it has roughly the same recoil as a 12 gauge shotgun.
The weapon uses polysynthetic black plastic composite material for it's outer shell and rubberized over sized hand grip, but it is mostly milled, stamped, and flow formed steel and cobalt chrome, both for reliability and added weight. The weapon's polysynthetic material is made from composites and polymers similar to the P90, to increase the durability.
The barrel is a 24 inch long polygonal cobalt chrome "flow formed" barrel. The barrel is made of an alloy that contains more than 50 percent cobalt. The barrel is roughly 13% heavier than standard steel barrels, but is more erosion and corrosion-resistant and is designed to retain high strength during long-term exposure to high temperatures. Cobalt alloys are frequently used in the aerospace industry, such as the hot-gas section of turbine engines. A proof of concept M240 7.62mm x 51mm NATO barrel, in practice, had 24,000 rounds test-fired through it, causing it to reach temperatures of 1,100 degrees, without failure. A steel barrel would have failed under such treatment.
The weapon sports a muzzle break and recoil buffer, and uses an impact gel pad in the stock to help mitigate felt recoil and to increase comfort. It also has a depleted uranium deadweight in the stock and mercury based hydrualic recoil buffer designed to both reduce the recoil after firing and spread out the load.
The weapon uses a FN herstal round counting blackbox and a HUD scope, capable of being integrated with the advanced land warrior system.
