YHM-4400 sRx QD Adapter | 1-3/8×24 | Black Oxide

The Yankee Hill Machine sRx Q.D. Adapter (YHM-4400) is a low-profile quick-detach mounting interface designed for use with the YHM sRx system. It attaches to the industry-standard 1-3/8 x 24 (HUB) thread and uses an internal taper in front of the threads to form a seal and secure a compatible suppressor. The adapter is intended for use with YHM sRx muzzle devices and suppressors specified for 9mm (.390 diameter) or smaller cartridges.

Product Specifications

• The manufacturer is Yankee Hill Machine (YHM).
• The model is listed as sRx.
• The manufacturer part number is YHM-4400.
• The adapter mounts to the industry standard thread 1-3/8 x 24 (HUB).
• The finish is specified as Black Oxide.
• The color is listed as BLACK.
• The product type is described as a Mount.
• The part is intended to fit the Yankee Hill SRX system.
• The product is described as a Low-profile quick-detach adapter/mount.
• The adapter is designed to be used with YHM sRx muzzle devices.
• Caliber compatibility is listed as 9mm or smaller.
• The product is covered by a Lifetime Manufacturer’s Warranty.
• An included product identifier is UPC 841812101499.
• An advertised feature is Quick Detach SRX Mount.

The YHM-4400 is built for shooters assembling a compact, low-profile suppressor system where consistent alignment and minimal added length are priorities. Use cases include range work or competitive/precision shooting setups where a quick-detach, repeatable mounting interface is desired; it is intended to be paired with YHM’s sRx muzzle devices to realize the system’s benefits.