The Maxim Defense DSX-D 5.56mm suppressor in black is the 5.56 NATO version of Maxim’s extreme-duty rifle can (Maxim Defense part no. 48354). It pairs a fully welded 17-4 stainless steel core with a Grade-5 titanium tube and mounts by direct thread only. Maxim rates it full auto on barrels of 5.5 inches and above, and it is made in the USA.

Key Specifications

• The caliber is 5.56 NATO, the DSX-D variation for 5.56 rifles.
• The color is black, the variation sold here.
• The mount is direct thread only, with no separate mounting system.
• The core is fully welded 17-4 stainless steel, built for hard use.
• The tube is Grade-5 titanium, which keeps weight down.
• The finish is Cerakote on the tube and a DLC mount.
• Length is 7.95 inches, the maker’s DSX-D figure.
• Weight is 1 pound 6.6 ounces, the maker’s DSX-D figure.
• Outer diameter is 1.81 inches.
• The firing schedule is full-auto rated on barrels of 5.5 inches and above, with no other barrel restrictions listed.

Frequently Asked Questions

Is this the 5.56 or the .30 caliber DSX-D? It is the 5.56 NATO DSX-D in black. Maxim also builds the DSX-D in .30 caliber as a separate item.

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 the DSX-D mount? It is direct thread only, so it threads onto a compatible muzzle without a separate mount.

Buy the Maxim Defense DSX-D 5.56mm Black Suppressor, Direct Thread

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. The DSX-D suits a duty or hard-use 5.56 rifle, and the welded core is what Maxim builds the line around. Order through Maxim Defense‘s suppressors lineup and our Lubbock, Texas team will handle the transfer, and it ships fast to your Class 3 dealer.