The Barrett AML338 10.3-inch suppressor (Barrett part no. 17434-KIT) is a titanium adapter-mount can rated for .338 and smaller rifle calibers, finished in Coyote Brown High Temp Cerakote. It mounts through a Barrett muzzle brake adaptor, so the recoil-reducing brake stays on the rifle and the can locks over it. Barrett CNC machines and orbital welds the titanium alloy body, and the concentric bore keeps rifle accuracy intact with minimal, repeatable point-of-impact shift. Barrett also says the AML series is engineered to eliminate muzzle flash in low light.

Key Specifications

• Length is 10.3 inches (262 mm), the longer of the two Barrett adapter-mount sizes listed.
• The caliber rating is .338 and less, covering .338 and smaller rifle chamberings.
• Diameter is 1.9 inches (48 mm), giving the baffles more internal volume.
• Weight is 1.6 pounds (0.7 kg), light for a suppressor of this size.
• The finish is Coyote Brown High Temp Cerakote.
• The body is high-strength titanium alloy, 100 percent CNC machined and orbital welded.
• The bore is precision machined for concentricity, so accuracy is not compromised.
• The mount is the Barrett muzzle brake adaptor, a dedicated interface for Barrett suppressors.
• Muzzle threads are 3/4-24 and 5/8-24, the two pitches Barrett lists for the AML338.
• Barrett lists sound reduction of 23 to 28 dB, the maker’s figure.

Frequently Asked Questions

What calibers is the AML338 rated for? Barrett lists it for .338 and less.

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.

How does it mount to a rifle? It uses Barrett’s muzzle brake adaptor, with muzzle threads of 3/4-24 and 5/8-24, so the can attaches over a Barrett brake on the barrel.

Buy the Barrett AML338 10.3-Inch 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 Barrett Firearms‘s suppressor lineup and our Lubbock, Texas team will handle the transfer.