Phantom Defense

Phantom Defense is a research-driven small arms and munitions developer focused on advancing firearm performance through disciplined engineering, empirical testing, and iterative design. For over a decade, their teams of engineers, ballisticians, and production specialists have executed end-to-end development programs spanning concept validation, materials qualification, small-batch prototyping, and controlled scale manufacture.

Phantom operates at the intersection of applied research and field deployment. Their methodology is strict: hypothesis, controlled experiment, data capture, and design refinement. They maintain closed-loop feedback with operational end users and armorers to ensure product improvements are driven by measured performance in real-world conditions. Manufacturing is outsourced to qualified partners under their technical oversight, balancing capital efficiency with production consistency and traceable lot control.

The 8.6 Blackout (8.6 BLK), designed by Kevin Brittingham and his team at Q LLC, is Phantom's flagship cartridge. This modern subsonic/supersonic assault cartridge builds on .300 Blackout principles with a larger .338-caliber bullet, delivering superior energy, range, and versatility—especially for AR-10 platforms.

• •Why it matters: A simple barrel swap converts AR-10s and .308 Winchester bolt guns to 8.6 BLK. The cartridge handles bullet weights from 160 to 210 grains at supersonic speeds (up to 2,400 FPS), and 280 to 350 grains at subsonic velocities.

• •Popular loads:
• •8.6 Blackout 300 gr Subsonic Sierra Match King HPBT (1050 FPS, 735 ft-lbs)
• •8.6 Blackout 300 gr Subsonic HPBT Match
• •8.6 Blackout 350 gr Subsonic REX Copper Expander
• •8.6 Blackout 300 gr Subsonic Solid Copper

"This round cycled flawlessly in my AR-10. Suppressed and unsuppressed both resulted in the bolt locking open on the final round. You can't beat the price either. Highly recommend these rounds." — Customer review

Their most popular caliber with multiple weight options and subsonic/supersonic variants: - 300 AAC Blackout 220 gr Subsonic (100 ct) - 300 AAC Blackout 200 gr Subsonic (100 ct) - 300 AAC Blackout 110 gr Vmax (100 ct) - 300 AAC Blackout 190 gr Sub X (100 ct) - Custom heavy loads including 238 gr and 242 gr variants

• •Recent releases:
• •5.56 - 75 gr ELD-M NAS3 ($67.00/50 ct)
• •5.56 - 85 gr Match Burner NAS3 ($75.00/50 ct) — Designed for transonic stability and exceptional accuracy in specific platforms
• •5.56 - 77 gr OTM NAS3 ($67.50/50 ct)
• •5.56 - 69 gr TMK NAS3 "Wasabi" ($67.00/50 ct)
• •5.56 - 77 gr TMK NAS3 "Tink" ($67.00/50 ct)

• •10mm
• •40 S&W
• •Additional pistol calibers

Phantom Defense prioritizes: - Repeatable accuracy — Sub-MOA groupings verified by customers - Predictable terminal performance — Empirical testing and documented results - Component durability — Validated through instrumented test protocols - Supply chain integrity — Closed-loop traceability with qualified manufacturers

"Shot multiple sub MOA groups at 100 yards out of my Q Fix. Very consistent and great all around plinking ammo." — Customer feedback

As a defense contractor, Phantom provides mission-critical solutions to high-demand customers who require uncompromising reliability and documented supply chain integrity. Programs emphasize risk mitigation, producibility, and lifecycle support, delivering ammunition and small arms components that meet stringent operational requirements across diverse environments.

• •Phone: (385) 309-0930

• •Online: Full catalog at phantomdefense.com with account creation, wish lists, and product comparisons available.

• •Shipping Policy: Same-day processing for orders before 2:00 p.m. MST (business days only). Due to federal regulations, ammunition returns are not accepted—all sales are final. Defective merchandise is subject to manufacturer evaluation and replacement.

Phantom regularly collaborates with industry partners like MilkMan Gun Lube and Mars Wetwork, offering exclusive product runs, slap packs, and tactical gear.

Beyond ammunition, they offer branded apparel including hoodies and long-sleeve shirts for customers who want to rep the brand.