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The Valkyrie Industries Modular Assault Shotgun, or MAS, is an automatic mag-fed shotgun produced by Valkyrie Industries .

Valkyrie Industries ACS

Valkyrie Industries MAS with custom breaching muzzle, GLR-16 stock and a 12 round box mag.









HistoryEdit

The Modular Assault Shotgun was made due to the growing interest in fully automatic shotguns for military and police use. The main contender against the MAS is the Atchinson Assault 12 , or AA-12, along with the Daewoo USAS-12 and the AKDAL MKA 1919 .

Development for the MAS began in 2010. The design and firing system was first based on the direct imprigment AR-15, but then the design team switched in 2012 to the more reliable G36/M416 gas piston system. The mag well was designed to accomodate MAS, AKDAL MKA 1919 and USAS-12 magazines. This feature was key for the MAS being worldwide accepted as an efficient weapon system. The MAS can also accept custom drum mags, increasing the mag capacity to 24.

First firing tests were made in late 2012 and results were very promising. In (location withheld), the US army had a contest between the MAS and the AA-12. The MAS had more feeding faliures than the AA-12, but was equally reliable when covered in mud and dust. However the military was more interested in the MAS due to it being 500$ cheaper per unit. However the US army stated that they will continiue trials with more contenders.

SpecificationsEdit

  • Firing modes: Safe, Semi, 3 round burst and Full Auto.
  • Chambering/Calibre: 12 gauge, 2.75 inch and 3 inch shells
  • Magazines: 6 and 12 round box, 25 round custom drum mag, also accepts MKA 1919 and USAS-12 mags.
  • Barrel length: 250mm/10 inches
  • Overall length: 750mm/0.75m
  • Weight: 3.2 kg with a fully loaded 12 round box mag
  • Mostly made out of high tensile plastic composites, other parts are out of carbon fibre and titanium alloys
  • Can be field stripped in under a minute
  • Accepts all AR-15 compatible buttstocks as well as the ACR folding stock and a custom skeleton stock.
  • Features multiple picatinny rails
  • Can fire semi auto underwater

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