The Yankee Hill Machine direct thread HUB adapter converts a HUB-compatible suppressor to a direct thread mounting system, and this version is cut for a 1/2×28 barrel thread (brand part no. 218928). To install it, remove the suppressor existing mount, thread on the adapter with a 3/4-inch open end wrench, then thread the suppressor onto the barrel. Made in the USA by Yankee Hill Machine from 17-4 PH stainless steel, it adds only a thin spacer between the suppressor and the barrel. It suits shooters who do not need a quick-detach mount and want the simplest, most compact attachment.

Key Specifications

• The barrel thread is 1/2×28, the pattern for many 5.56 and pistol-caliber barrels.
• The suppressor-side thread is 1-3/8×24, the HUB thread, which is what lets it adapt a HUB-compatible suppressor.
• The material is 17-4 PH stainless steel, a strong, corrosion-resistant steel for a mount that carries the suppressor.
• The finish is black oxide, a low-glare coating that matches most muzzle hardware.
• The length is .3-inch, which keeps the added length behind the suppressor to a minimum.
• The diameter is 1.5625-inch, matching the HUB body size.
• The weight is 1.7 ounces, a small addition to the suppressor and rifle.
• It is made in the USA by Yankee Hill Machine.

Frequently Asked Questions

How do I install it? Remove the existing mount mechanism from your suppressor, thread the adapter on using a 3/4-inch open end wrench, then thread the suppressor onto your barrel.

What barrel threads does this one fit? This version fits 1/2×28 barrel threads. YHM also offers the adapter in other threads, including 5/8×24, 9/16×24 and 3/4×24, so match the one you order to your barrel.

Does it work with quick-detach mounts? No. It is a direct thread mount, which replaces the quick-detach mechanism so the suppressor threads straight onto the barrel.

Buy the Yankee Hill Machine Direct Thread HUB Adapter, 1/2×28

A direct thread mount is the lightest, most compact way to run a HUB-compatible suppressor on a standard barrel. Order this one from our Lubbock, Texas gun shop for fast, direct shipping, and browse more Class 3 parts and accessories for the rest of your setup.