The Chaos Gear Supply Helios QD Ti 5.56mm Titanium Suppressor is the lightweight Grade 5 titanium version of the Helios QD (CGS part no. CGS-HELIOS-QDTI). It is optimized for 5.56mm rifles and carbines and bored out to .36, which reduces gas blowback and leaves room for larger calibers. The bore tapers are cut wider to help prevent baffle and end cap strikes. It ships as a kit with 1/2×28 and 5/8×24 threaded rear caps and a 1.375×24 adapter ring. It carries a 10-inch minimum barrel length for 5.56 rifles.

Key Specifications

• The design caliber is 5.56mm, rated up to and including 300 Norma Magnum.
• The bore is .36 diameter, which lowers back pressure and muzzle flash.
• Weight is under 10 ounces before mounts, a big saving over the Inconel version.
• Diameter is 1.75 inches, a common size for handguard clearance.
• The material is Grade 5 titanium, chosen for strength at low weight.
• The minimum barrel length for 5.56 rifles is 10 inches, per the dealer listing.
• Rear caps in 1/2×28 and 5/8×24 are included, covering both common muzzle threads.
• A 1.375×24 adapter ring is included for a range of mounting systems.
• Front caps are interchangeable, so the can can be set up for the host rifle.
• A lifetime warranty from CGS covers the can.

Frequently Asked Questions

How much lighter is it than the Inconel Helios QD? The titanium version weighs under 10 ounces before mounts, while the Inconel version is listed at 19 ounces.

Do I need ATF approval to buy this? No. As of October 9, 2026, ATF no longer requires Form 4 approval, registration or a tax stamp for suppressors. It transfers on a Form 4473 with a background check through a Class 3 (SOT) dealer. State and local laws still apply.

What barrel length does it need on 5.56? The dealer listing gives a 10-inch minimum barrel length for 5.56 rifles, and the can is rated up to and including 300 Norma Magnum.

Buy the Chaos Gear Supply Helios QD Ti 5.56mm Titanium Suppressor

As of October 9, 2026, this suppressor transfers on a Form 4473 with a background check at your Class 3 (SOT) dealer, with no Form 4 or tax stamp; state and local laws still apply. Order through Chaos Gear Supply‘s silencers and suppressed firearms lineup and our Lubbock, Texas team will handle the transfer, and it ships fast to your Class 3 dealer. It is the Helios QD, but lighter, for shooters who want a quick-attach 5.56 can under 10 ounces.