The Griffin Armament HUB DUAL-LOK 5 AM is a managed backpressure 5.56mm suppressor in black, built for hard use on rifles. Griffin prints the core from its proprietary Nickel 625X powder alloy using additive manufacturing and laser-welds it to a machined 17-4 stainless rear, so the can stays warranty serviceable. The rear uses the industry-standard 1.375×24 HUB thread, which pairs with Griffin’s HUB mount adapters and other compatible HUB inserts. An improved flash hider end cap vents gas to soften recoil and reduce the shooter’s exposure to toxic gases. It is a strong match for a duty carbine or a hard-run AR-15 where low backpressure matters.

Key Specifications

• The caliber rating is .22 caliber (5.56mm), matching AR-15 and other 5.56mm rifles.
• The rear mount is the HUB 1.375×24 thread, which accepts Griffin HUB adapters or other compatible HUB mounting systems.
• Size is 5.5 inches long by 1.5 inches in diameter, a compact footprint for a managed backpressure rifle can.
• Weight is 12.3 ounces, light for a full-auto rated can.
• Griffin lists this black version under part number GAHUB556AM-W, the number to match against Griffin’s own catalog and manuals.

Frequently Asked Questions

Does it come with a HUB mount or muzzle device? No. Griffin ships the silencer with a branded suppressor pouch, and the HUB mount adapter and a compatible muzzle device are purchased separately.

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 Griffin Armament HUB DUAL-LOK 5 AM 5.56mm Suppressor, Black

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. Griffin backs it with its perpetual lifetime warranty, and it ships fast to your Class 3 dealer. Order through Griffin Armament‘s suppressor lineup and our Lubbock, Texas team will handle the transfer.