Sig Sauer Hexium 300 Titanium Suppressor - 5/8 x 24

Sig Sauer Hexium 300 Titanium Suppressor - 5/8 x 24

Run quiet and clean on your .300 Blackout with the SIG Sauer Hexium 300 suppressor. It is a titanium can built around a 3D-printed core and tuned for .300 AAC Blackout, with low back pressure and quiet, clean tones across both subsonic and supersonic ammunition. The rugged hexagonal relief pattern on the body, which is where the name comes from, helps dissipate heat and gives you a better grip when you install or remove it.

The Hexium 300 is 8.95 inches long, 1.75 inches in diameter, and weighs about 15 ounces, so it stays light and balanced on a short rifle or pistol. Its low back pressure design helps keep the action running cleanly by reducing gas blowback to the shooter and the receiver. It carries a black Cerakote finish over the titanium body. Dealers list it for .300 Blackout, and SIG's modular line also covers other calibers in separate Hexium models.

It mounts with a HUB-compatible taper direct thread mount in 5/8x24, so it threads straight onto a 5/8x24 barrel or muzzle device and also works with HUB accessories. At the front end, a modular end cap design adds an accessory mounting system, which gives you room to customize the suppressor over time. The 5/8x24 mount works with the .300 Blackout rifles and pistols that are built for suppressor use.

Suppressors can be transferred with a standard firearm background approval (Form 4473). Explore our full lineup of NFA items and suppressors at https://www.nativeoutdoors.com/suppressors, or stop by the store — our staff can walk you through whichever purchase and transfer process applies to your situation.

Frequently Asked Questions

Q: What caliber is the SIG Sauer Hexium 300 made for?
A: It is optimized for .300 AAC Blackout and performs across both subsonic and supersonic ammunition.

Q: How does it mount to my rifle?
A: It uses a HUB-compatible taper direct thread mount in 5/8x24. It threads onto a 5/8x24 barrel or muzzle device.

Q: What is the hexagonal pattern on the body?
A: SIG milled a hexagonal relief pattern into the suppressor body. It helps dissipate heat and gives you a better grip when you install or remove the suppressor.

Q: How big and heavy is it?
A: It is about 8.95 inches long and 1.75 inches in diameter, and it weighs about 15 ounces.

Q: What is it made of?
A: It is a titanium suppressor with a 3D-printed core and a black Cerakote finish.

Q: How do I buy a suppressor?
A: Suppressors can be transferred with a standard firearm background approval (Form 4473), subject to your state's laws. Stop by the store, and our staff will walk you through the process.