TheBlack Thunderis a tactical, modernized version of Big Horn Armory’s Model 89, built to handle the extremely powerful.500 S&W Magnumcartridge. It blends classic lever-action design (inspired by old Browning rifles) with modern materials, rails, and rugged finishes.
It’s essentially a“tactical big-bore lever gun”designed for hunting large game, survival use, or shooters who want extreme stopping power in a compact platform.
Category
Specification
Manufacturer
Big Horn Armory
Model
Model 89 Black Thunder (89BT)
Action
Lever-action, repeating
Caliber
.500 Smith & Wesson Magnum
Barrel Length
16″ – 16.25″
Overall Length
~36 inches
Weight
~7.5 – 7.75 lbs
Magazine Type
Tubular
Capacity
6 rounds
Twist Rate
1:24″ RH
Finish
Black nitride / matte black
Stock
Black laminate wood
Trigger Pull
~4–6.5 lbs
Length of Pull
~13.75″
Sights
Skinner aperture rear, bead/fiber front
Optics Mount
Picatinny scout rail
Barrel
Threaded (muzzle brake included)
Performance & Ballistics
Chambered in.500 S&W Magnum, one of the most powerful production cartridges in the world
Capable of firing:
~200 grain (lighter loads)
Up to700 grain projectiles
Best suited for
Big game hunting
Backcountry defense
Survival / truck gun setups
Tactical lever-action enthusiasts
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