Gen12 BMFs Breaching Shotgun Evolved

12Ga Breaching Magazine Fed Semi-auto shotgun (BMFs)

Royal Arms & Genesis Arms have collaborated to make the ultimate breaching shotgun. The BMFS is a 12ga magazine fed that is based on the proven and familiar AR platform. The upper will bolt onto any DMPS Gen1 style AR10 lower. The upper is where all the magic happens and is the natural evolution of breaching and CQB Shotguns.

The BMFs has a proprietary and patented short recoil delayed blowback operation. The barrel reciprocates each time it is fired, like on a Barrett M82. Since our system is not gas operated and is recoil / inertia driven almost all 2-3/4” or 3” shells that will fit in the magazine can be fired with ultimate reliability. The Charging Handle is a HK reciprocating style, which acts as the forward assist or as a pump action when firing NON-Lethal or low impulse rounds. Its on the right side of the receiver for familiarity. The BMFS can also be used as a CQB weapon system for increased stopping power or as a less than lethal means. Since the magazines are quick to change, it can go from Breaching to Anti Personnel to Non Lethal in a matter of seconds!


• AR10 DPMS Gen1 Lower Compatible.
• 12 GA 2-3/4” OR 3” Shells
• Folding & Collapsible Stock Options
• Last Round Bolt Hold
• Multiple Magazine Options
• 5 & 10 Round Box Mags
• 20 Round Drum
• Compact length 22” OAL w/ 7.5” Micro Breacher
• Multiple Configurations

UPPER ONLY (Not a firearm)
– 7.5” Micro Breacher Barrel
– 10.5” Mini Breacher Barrel
– 14.5” Short Breacher Barrel
– 18.0” Standard Breacher Barrel

COMPLETE SHOTGUNS NON NFA
– Title 1 Firearm NON NFA (Sig Brace w/ 10.5” Barrel) O.A.L. 26.5”)
– Standard Shotgun w/ 18” Barrel and collapsible Stock or Pistol Grip O.A.L. 38”-44”

NFA SHOTGUNS aka Shorty’s
– AOW (pistol Grip w/ 7.5” Barrel) O.A.L. 22.5”)
– SBS (Folding Stock w/ 10” or 14” Barrel) O.A.L. = 28” – 36”

!!! ALL NFA RULES APPLY WITH SHORT BARRELS !!!

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