This Dead Air .46 caliber suppressor is the Primal, Dead Air’s stainless big bore can for shooters who want one silencer across pistols, carbines and big rifles (Dead Air part no. PRIMAL). Its .458 bore and 5100 ft-lb energy rating let it run anything from 9mm and .45 ACP to 45-70 and the .338 Lapua. Dead Air builds the Primal from 17-4 PH stainless steel at 7.9 inches and 16.4 ounces, with a black Cerakote body and nitride attachments. It ships set up for direct thread on a 5/8-24 mount, and its HUB rear threads leave room to switch to quick-detach mounting later. The full-auto rating and absence of barrel restrictions make it a hard-use choice for subguns and short carbines as well.

Key Specifications

• The bore is .458 caliber, which is what lets this can swallow everything from pistol rounds to 45-70.
• Energy is rated to 5100 ft-lbs, with Dead Air listing the .338 Lapua as the upper end of its rating.
• Length is 7.9 inches, Dead Air’s published figure for the suppressor.
• Weight is 16.4 ounces, a fair trade for a stainless build meant to last.
• Diameter is 1.618 inches, worth checking against your front sight and handguard.
• Construction is 17-4 PH stainless steel, a hard-wearing alloy for high-pressure rifle use.
• The finish is a black Cerakote body with nitride attachments, which resists heat and wear.
• The included mount is a 5/8-24 direct thread HUB mount, ready for common .30 caliber and big bore muzzle threads.
• Rear threads follow the 1.375-24 HUB standard, so Xeno, KeyMo and Xemax mounts also fit.
• Dead Air lists it as full-auto rated with no barrel restrictions, a rating that suits subgun and short-barrel use.

Frequently Asked Questions

Is this the same suppressor as the Dead Air Primal? Yes. The part number is the Primal, Dead Air’s .458 caliber multi-caliber suppressor rated with energies up to .338 Lapua.

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 else is in the box? Along with the 5/8-24 direct thread HUB mount, Dead Air includes a HUB to P-Series adapter and a TL tool pack, so P-Series mounts such as the 3-lug and booster adapter can be used.

Buy the Dead Air .46 Caliber Big Bore 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. Order through Dead Air‘s silencers and suppressed firearms lineup and our Lubbock, Texas team will handle the transfer. Few suppressors cover a 9mm pistol, a 45-70 and a .338 Lapua rifle with the same tube, and this one does it in stainless steel.