The Barrett AM338 suppressor in 3/4×24 is a titanium rifle suppressor rated for .338 and smaller calibers, made by Barrett Firearms. Barrett CNC machines the titanium alloy and orbital welds it to hold weight down without giving up durability. The bore is machined for concentricity so accuracy and point of impact stay predictable shot to shot. It attaches through a Barrett muzzle brake adaptor and suits a long-range shooter running a Barrett or another large-caliber rifle.

Key Specifications

• The caliber rating is .338 and smaller, covering large-bore long-range rifles.
• Length is 9.9 inches, with a diameter of 1.8 inches.
• Weight is 1.3 pounds, light for a suppressor of this size.
• The mount is the Barrett muzzle brake adaptor, and Barrett lists 3/4-24 and 5/8-24 muzzle threads for the AM338.
• Barrett lists 23 to 28 dB of sound reduction and a CNC-machined, orbital-welded titanium alloy body.

Frequently Asked Questions

How does the AM338 mount? It attaches to a Barrett muzzle brake adaptor, with Barrett listing 3/4-24 and 5/8-24 muzzle threads. This listing is the 3/4×24 version.

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.

Buy the Barrett AM338 Suppressor, 3/4×24, Titanium

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 silencers and suppressed firearms lineup and our Lubbock, Texas team will handle the transfer, and it ships fast to your Class 3 dealer.