Black Creek Labs MRX Bison Scout Bolt Rifle 5.56 NATO, 12.5", ODG


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Product Information

The MRX Bison is a compact, light and rugged bolt action rifle that is chambered in 5.56 and is fed with AR15 magazines.  This rifle would be comfortable in its scabbard on the side of a horse, packed, slung or mounted onto a Utility Vehicle for ranch, range or backcountry duty.  The vertical pistol grip and adjustable stock allows for the rifle to be shot comfortably in any position.

In addition to being compatible with AR15 magazines, the MRX Bison also feeds from the MRX MAG bolt action magazine that has longer feed lips and a follower stop that (unlike AR15 mags) allows the action to be closed with a fitted, empty magazine.


  • Chassis - Machined from aircraft grade aluminum. Finished with Type III hard coat anodize and Cerakote.  The chassis comes with side and under rail MLOK mounting points and an integral “one point” QD sling point on the opposite side of the bolt.
  • Action - MRX Supershort with three lug bolt offering a 60 degree bolt throw.
  • Barrel - 12.5" Match Grade Steel Barrel finished with Nitride and Cerakote.
  • Trigger - Triggertech Remington 700 Primary Trigger.


  • Caliber: 5.56 NATO
  • Action: MRX Supershort
  • Barrel Length: 12.5"
  • Length: 28.5"
  • Weight: 6.9 lbs.
  • Accuracy: 1.5 MOA
  • Accessory Mounting: Picatinny, M-LOK
  • Sights: N/A
  • Magazine: AR-15 Type
  • Muzzle: 2 Gilled Brake
  • Muzzle Thread: 1/2-28"
  • Colour: ODG Cerakote
  • Part #: BISS55612ODG
  • Non-Restricted


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