M90-series shotguns

The M90 Close Assault Weapon System and it’s variants are 8 gauge tactical shotguns designed and produced by Weapon System Technologies, meant for military and law enforcement agencies such as the United Nations Space Command.
The M90-series is preferred by the UNSC Navy and Marine Corps over it’s counterpart, the M45-series, thanks to their higher capacities and longer barrel lengths, lending themselves to offensive uses. 
== DEVELOPMENT ==
[PENDING]
== MODELS ==
=== M90 Close Assault Weapon System ===
The M90 CAWS (and it’s variants) fires 8 gauge shotshells from a dual-tube non-detachable internal magazine, which can be partially locked to feed from only one tube to alternate between two shell loadings, or fully locked to keep the system from cycling entirely, allowing the user to load another shell without first unloading the firearm. 
=== M90/A Close Assault Weapon System ===
The M90/A CAWS (with licensed Misriah Armory model beneath it) was designed to improve upon the original M90’s limited drawbacks with a longer barrel length and alternate caliber variants. 
Its barrel was lengthened to 61 centimeters to maximize the performance of buckshot loadings, while the platform now offers 10 and 12 gauge models, providing a greater variety in both user choice and comfort, and to compete with MA’s newly launched CQS-48 Combat Shotgun. 
Misriah Armory produced licensed A-variants to satisfy wartime demand despite shortages due to the loss of Reach. The model was simplified and redesigned to mimic design cues of M45-series shotguns, with it most notably being restricted to a single-tube magazine holding six 8 gauge shells.
=== M90/B Close Assault Weapon System ===
The M90/B CAWS improved on prior models with a variable choke, dual-mode semi-automatic fire, and magnetorheological recoil dampening. 
The variable choke is controlled by SmartLink connectivity to remotely tighten pellet spread for improved range and accuracy, or loosen to allow the use of slug rounds. The choke is additionally externally threaded to accept various muzzle devices such as suppressors or door breachers.
Semi-automatic fire is actuated by a gas-operated short stroke piston, and can be quickly switched to pump action to more reliably cycle various lower pressure and less-lethal ammunition types.
Magnetorheological shock absorption is actuated by a dual-tube damper, mitigating nearly all felt recoil from even the heaviest magnum loads. 
== USAGE ==
[PENDING]
== TRIVA ==
The name M90 refers to the doubled shell capacity compared to the original M45 (12 rather than 6), and the year it was formally adopted (2490)
Category:Purple Timeline
Category:Weapons