Sig Sauer Hexium .300 TI Suppressor .300 Blackout Titanium Hub Taper Direct Mount 5/8"-24

The Sig Sauer Hexium .300 TI suppressor is a titanium-core rifle suppressor engineered for shooters running .300 Blackout platforms who want genuine sound reduction without the backpressure penalty. Built using Sig Sauer's advanced 3D printing and internal geometry design, the Hexium .300 TI delivers the quiet, clean report that subsonic shooters expect, whether you're hunting hogs in low light or running suppressed drills at the range. At 15 ounces and 8.95 inches long, it's a compact, lightweight addition that won't throw off your balance or maneuverability.

Mounting is straightforward: the Hub Taper Direct Thread system attaches directly to barrels threaded 5/8"-24, the standard for .300 Blackout bolt-actions and AR pistols alike. That direct-mount approach means zero indexing guesswork and a rock-solid lockup shot to shot. The hexagonal external profile with black Cerakote finish is as functional as it is distinctive—it looks purposeful on a rifle and the corners provide confidence when hand-tightening or using a wrench.

The real story is internal: Sig engineered the baffle stack geometry to minimize back pressure, which matters most on .300 Blackout, where you're often shooting subsonic loads and want the suppressor to act like a suppressor, not a gas generator. The titanium construction handles sustained fire without thermal bloat, and the modular end cap design opens the door to future accessory compatibility as your setup evolves.

Key Features

• Hub Taper Direct Thread mounting for .300 Blackout barrels (5/8"-24 threads)
• Titanium core construction—lightweight and thermally stable
• Advanced internal geometry designed for low back pressure and clean sound
• Compact 8.95-inch length, 15-ounce weight
• 1.75-inch diameter—manageable on short-barreled rifles and AR pistols
• Modular end cap system for future accessory integration
• Hexagonal external pattern with black Cerakote finish

Specifications

Frequently Asked Questions

What barrels will this suppressor fit?

The Hexium .300 TI threads directly onto barrels with 5/8"-24 threads. This is the standard threading for .300 Blackout bolt-actions and AR-platform .300 Blackout rifles and pistols. Confirm your barrel is threaded to this specification before ordering.

Is this suppressor suitable for subsonic .300 Blackout ammunition?

Yes. The Hexium .300 TI was designed with internal geometry that prioritizes low back pressure, making it well-suited to subsonic loads, which is a primary use case for .300 Blackout shooters.

What does the modular end cap design mean?

The end cap is built to accommodate future accessory mounting options. This allows you to adapt the suppressor for different roles or attach compatible future accessories without replacing the core suppressor body.

How durable is titanium for suppressor use?

Titanium offers excellent durability and thermal stability under the heat and pressure of repeated firing. It is significantly lighter than steel, which is a key advantage for rifle-mounted suppressors, especially on shorter, handier platforms.