The Diamondback Ventra 5.56 NATO suppressor is a compact, full-auto rated can for AR-15 and other 5.56 platforms, finished in Cerakote Armor Black (Diamondback part no. DBS-556i). It pairs a short overall length with Pressure Venting Technology, which channels gas away from the shooter for less blowback, smoother recoil and more reliable cycling. Diamondback machines the core from Inconel 718 and caps it with a 17-4 stainless steel endcap, and the body weighs 12.0 ounces without its adaptor. It threads onto a 1/2-28 muzzle and is HUB compatible for modular use across hosts. For a carbine or short rifle that sees long strings at the range or in training, it keeps the rifle balanced and the shooter comfortable.

Key Specifications

• The caliber rating is 5.56x45mm, the cartridge Diamondback rates this suppressor for.
• The muzzle thread pitch is 1/2-28, the standard thread on most AR-15 barrels.
• The mount is direct thread with a HUB adaptor, so the can can move between hosts carrying the matching mount.
• Length with the direct thread mount is 5.711 inches, and overall length without the mount is 5.336 inches.
• Added length to the firearm is 5.088 inches, compact enough to keep a carbine balanced.
• Diameter is 1.55 inches, slim enough to sit comfortably under most handguards.
• Body weight is 12.0 ounces, with the direct thread adaptor adding 2.0 ounces.
• Construction is an Inconel 718 core with a 17-4 stainless steel endcap, selected for heat resistance and corrosion protection.
• The finish is Cerakote Armor Black with a Black Nitride+ adapter, a low-glare coating that guards against corrosion.
• It is full-auto rated with no minimum barrel length, which suits short-barreled 5.56 hosts.

Frequently Asked Questions

Does the Ventra 5.56 NATO work on a short barrel? Yes. Diamondback lists no minimum barrel length and rates the suppressor for full-auto fire, so a short-barreled 5.56 host is within its rating.

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.

Is it HUB compatible? Yes. Diamondback lists it as HUB compatible, shipping on a 1/2-28 direct thread mount with a HUB adaptor.

Buy the Diamondback Ventra 5.56 NATO Suppressor, Black Cerakote

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 Diamondback Firearms‘s silencers and suppressors lineup and our Lubbock, Texas team will handle the transfer, and it ships fast to your Class 3 dealer.