The CMMG Banshee Mk3 pistol in 8.6 Blackout (brand part no. 33A030CMB) is built on CMMG’s AR-10-size Mk3 platform, based on the LR-308/DPMS Gen 1 high-pattern design, giving the heavy 8.6 Blackout cartridge a large-frame receiver to run in. CMMG cuts the 12.5-inch barrel with a Black Nitride finish and an ultra-fast 1-in-3 twist to stabilize 8.6 Blackout’s long, heavy bullets, and finishes the forged 7075-T6 aluminum receivers in Midnight Bronze Cerakote. The 11-inch M-LOK handguard runs full-length slots on both sides and the bottom, plus M-LOK sections between the top Picatinny rail, and a CMMG ZEROED grip rounds out the controls. Among AR pistols built for large-bore, close-range performance, this Banshee Mk3 configuration favors shooters who want hunting-capable power in a pistol format.

Key Specifications

• Chambered in 8.6 Blackout, this pistol runs a 20-round capacity magazine.
• The barrel measures 12.5 inches and wears a Black Nitride finish.
• Rifling twist is an ultra-fast 1-in-3 inches, matched to 8.6 Blackout’s long, heavy bullets.
• The platform is CMMG’s Mk3, an AR-10-size receiver based on the LR-308/DPMS Gen 1 pattern.
• The receivers are forged 7075-T6 aluminum.
• The receivers are finished in Midnight Bronze Cerakote.
• The 11-inch M-LOK handguard carries full-length slots on both sides and the bottom.
• The grip is a CMMG ZEROED grip.
• The pistol ships with a receiver extension in place of a shoulder stock.

Frequently Asked Questions

Why is the twist rate so fast? 8.6 Blackout uses unusually long, heavy bullets that need a 1-in-3-inch twist to stabilize.

What platform is this pistol built on? CMMG’s Mk3, an AR-10-size platform based on the LR-308/DPMS Gen 1 pattern.

Does this pistol include a shoulder stock? No, it ships as a pistol with a receiver extension in place of a stock.

Buy the CMMG Banshee Mk3 Pistol, 8.6 Blackout

A large-frame Mk3 platform and a fast-twist barrel make this Banshee a genuinely capable large-bore pistol. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.