NEW! 18” .308 WIN FULCRUM profile, threaded muzzle, 416R stainless steel. Fluted and stress relieved. 6-groove, 1:10” twist rifling. Intermediate length gas. BAT Machine barrel extension has M4 feed ramps. Requires the use of a Bison Armory proprietary gas block. $360 with standard Elite Iron gas bock, $430 with SLR Rifleworks adjustable gas block. Shop for this barrel HERE.

NEW! 18” .223 WYLDE FULCRUM profile, threaded muzzle, 416R stainless steel. Fluted and stress relieved. Chambered to handle .223 Remington and 5.56 NATO ammo. 6-groove, 1:7” twist rifling. Mid length gas. BAT Machine barrel extension has M4 feed ramps. Requires the use of a Bison Armory proprietary gas block. $350 with standard Elite Iron gas bock, $420 with SLR Rifleworks adjustable gas block. Shop for this barrel HERE. Build it into an Upper Assembly HERE.

NEW! 18" 6.8 SPC II FULCRUM profile, threaded muzzle, 416R stainless steel. Fluted and stress relieved. 4-groove, 1:11” twist rifling. Mid length gas. Standard barrel extension has M4 feed ramps. Requires the use of a Bison Armory proprietary gas block. $330 with standard Elite Iron gas bock, $400 with SLR Rifleworks adjustable gas block. Shop for this barrel HERE. Build it into an Upper Assemnbly HERE.

IN STOCK! 6.8 SPC 200 Grain BSP Bullets  - optimized for the Bison Subsonic Platform and made to our custom specs by Woodleigh Bullets. NOTE: These are not loaded cartridges, they are for reloading / handloading only. Prices vary depending on the quantity purchased. Shop for these bullets HERE.

NEW! AR-10 Barrel Nut Shim Set - 3 Pack of 0.001" thick shims for use in the installation of all AR-10 / BR-X / MA-10 rifle barrels chambered in .308 Win / 7.62x51mm NATO. Easily achieve perfect barrel nut / gas tube alignment within the correct barrel nut torque specifications every time! Use of these shims will not affect bolt / barrel headspace. 5$ - Shop for shims and watch our instructional video HERE.

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