The Griffin Explorr 224 Utility Mount HUB is Griffin Armament’s tubeless .224 caliber suppressor built around the industry-standard HUB rear (Griffin part no. GAEU2-W). It is CNC machined from 17-4 stainless steel, H900 heat treated and laser welded, which Griffin says outlasts 718 Inconel in its testing. The 1.375×24 HUB thread lets the owner choose a Taper Mount, Dual-Lok, Gate-Lok, A2 or direct thread interface. Griffin’s ECO-FLOW baffles cut backpressure through semi-auto actions, and a low-profile flash reducer is built into the end cap. It suits a shooter who wants one light can that can move between hunting rifles and carbines.

Key Specifications

• Overall length is 5.8 inches, compact for a .224 caliber rifle suppressor.
• Diameter is 1.5 inches, the common size for rifle cans.
• Weight is 9.1 ounces for the suppressor alone, or 11.0 ounces with a PLAN-A Taper Mount HUB adapter.
• Construction is 17-4 stainless steel, fully H900 heat treated and laser welded, in a tubeless design.
• The rear is a 1.375×24 HUB thread, the industry-standard interface for swapping mounts.
• It is Taper Mount compatible through Griffin’s PLAN-A HUB adapter, which Griffin says mounts in about 5 seconds.
• Griffin rates it for .224 caliber up to .22-250 Remington.
• Griffin lists sound reduction of 31.11 dB on a 16-inch MK1 and 34.71 dB on an 11.5-inch MK1.
• The ECO-FLOW baffle system reduces back pressure and blowback through semi-auto actions.
• It is full-auto rated and has a low-profile flash suppressor integral to the end cap.

Frequently Asked Questions

What mounts will the Explorr .224 Utility Mount accept? Its 1.375×24 HUB rear accepts Griffin’s PLAN-A Taper Mount adapters, A2, Dual-Lok and Gate-Lok HUB interfaces, and 1/2×28 or 5/8×24 direct thread HUB adapters, as well as other makers’ HUB inserts.

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 there a minimum barrel length? With a Taper Mount, Griffin lists no minimum barrel length for rifle calibers. On an A2 mount, Griffin specifies a 10.5-inch minimum for 5.56 and .223.

Buy the Griffin Armament Explorr .224 Utility Mount HUB Suppressor, 17-4 Stainless

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 Griffin Armament‘s silencers and suppressors lineup and our Lubbock, Texas team will handle the transfer, and it ships fast to your Class 3 dealer. Griffin backs it with its Perpetual Lifetime Warranty.