Yankee Hill Machine sRx Low-Profile Q.D. Adapter (YHM-4400)

Description

The Yankee Hill Machine sRx Low-Profile Quick-Detach Adapter (YHM-4400) provides a compact mounting interface for suppressors using the YHM sRx system. It attaches to the industry-standard HUB 1-3/8″ x 24 threads and employs an internal taper seal positioned forward of the threads to form a secure gas-sealing interface. This adapter is specifically intended to be paired with YHM sRx muzzle devices and is built to add minimal length and weight to a suppressor setup while preserving a low-profile appearance.

Key Specifications

• The adapter mounts to the industry-standard HUB threads of 1-3/8″ x 24.
• Intended fit is for the YHM sRx system (Yankee Hill SRX).
• The finish on record is Black Oxide.
• The adapter adds 0.200 inches to the suppressor overall length when installed.
• The listed overall length for the adapter is 0.600 inches.
• The outside diameter is recorded as 1.563 inches.
• The adapter must be paired with YHM sRx muzzle devices such as 4405, 4405-MB, 4401-MB, and 4445.
• The design is described as low-profile with no moving parts for a simple, repeatable interface.
• The product documentation lists compatibility for 9mm (.390 diameter) or smaller calibers when used within the sRx system context.

This low-profile YHM adapter is a straightforward solution for shooters who want a compact suppressor mounting point compatible with the YHM sRx ecosystem. Its taper-seal interface and minimal added length make it suitable for builds where aesthetics and quick detach functionality are priorities while maintaining a simple, robust mechanical design.