Griffin Armament HRT-556 AM

Product Identity

Manufacturer: Griffin Armament
Model: HRT-556 AM
Caliber / Rating: 5.56mm, rated for use on 5.56/.223 platforms up to the manufacturer's posted limits
Mounting / Interface: Griffin Armament's proprietary Taper Mount (AM) direct-thread/quick-attach interface

Weight and overall length will be confirmed against Griffin's current published specifications before this page goes live and updated here — we publish only figures we've verified ourselves, not reprinted manufacturer copy.

Why Driftwood Carries It

Griffin Armament is one of Driftwood Western's established NFA ecosystem partners, and the HRT-556 AM was one of the first cans we brought in as a stocking NFA dealer — selected specifically as a low-back-pressure 5.56 option to pair with Rancher, our flagship ranch rifle.

Tested By Driftwood

Evaluation in progress. We've run this can on our own rifles as part of our initial stocking order; a full written field report will be added here once we've put more rounds behind it. We don't publish testing claims we haven't earned.

Best Fit

Paired most naturally with Rancher. If you're building or buying a 5.56 rifle from us and want a suppressor recommendation, ask — we'll tell you honestly whether this is the right can for your setup or whether something else in our lineup fits better.

Availability & Transfer

Suppressor availability can change quickly. Orders are subject to current inventory, applicable federal, state and local law, and a lawful transfer path to the buyer.

For eligible out-of-state customers, Driftwood Western can ship to a qualified receiving FFL in the customer's state, with SOT status where required. The receiving dealer completes the customer transfer under the rules applicable at the time.

Driftwood Western will confirm product availability and the appropriate transfer path before shipment.

Status: In Stock at DW

Shop Through Silencer Shop

Browse and purchase through Driftwood Western's Silencer Shop dealer page. Using this link automatically selects Driftwood Western as your preferred dealer, and Silencer Shop handles the online purchase workflow through its platform.

If you find a suppressor on Silencer Shop that you want but would rather work directly with us, contact Driftwood Western and we can help place the order through Silencer Shop on your behalf.

Shop Silencer Shop with Driftwood Western  |  Contact Driftwood to Order

Also available through Silencer Shop when inventory permits.