Yankee Hill 444532 sRx Q.D. Flash Hider Short Black Phosphate Steel with 5/8"-32 tpi for sRx Adapters

The Yankee Hill sRx Q.D. Flash Hider is a quick-detach muzzle device built for shooters who want a low-profile suppressor setup without compromising on ease of use or build aesthetics. This 5/8"-32 TPI model integrates seamlessly with the YHM sRx System—Yankee Hill's modern approach to suppressor mounting that prioritizes clean lines, straightforward operation, and repeatable performance. If you're running an AR, precision rifle, or any platform where a compact muzzle device matters, the sRx flash hider delivers the mounting interface you need while keeping extra length and weight to a minimum.

The core advantage of the sRx system lies in its engineering simplicity. No shims, no timing hassles, no moving parts—just a large internal taper seal that locks your suppressor in place and seals gases at the threads to prevent buildup and debris accumulation. That taper also ensures consistent mounting every time you attach or detach your can, which matters when you're chasing accuracy or switching between rifles. The device is manufactured from 4140 steel with a black phosphate finish, delivering durability and a professional appearance that works with modern rifle builds.

This short version adds minimal real estate to your barrel—just 1.175 inches on a standard barrel with 0.6" of threads—so it pairs perfectly with rifles where you want the suppressor right up front without a bulky footprint. It's lighter than many comparable Q.D. options on the market, and the design works whether you're running it as a dedicated flash hider or as part of a full sRx suppressor stack. Note that you'll need the YHM sRx Adapter (YHM-4400) to complete the system.

Built for the shooter who treats suppressors as a permanent fixture or rotates them between rifles, the sRx flash hider is a straightforward, no-nonsense foundation for a suppressed setup that looks intentional and performs reliably.

Key Features

• Quick-detach mounting interface compatible with YHM sRx Adapter and standard 1-3/8" x 24 HUB threads
• Large internal taper seal locks suppressor securely and prevents gas/debris buildup at threads
• No-shim, no-time design for repeatable mounting and consistent performance
• Compact short profile adds only 1.175" to barrel length (on standard 0.6" threaded barrels)
• Lightweight construction relative to other Q.D. muzzle devices
• 4140 steel construction with black phosphate finish for durability and aesthetics
• Can be permanently attached or quickly detached as needed

Specifications

Frequently Asked Questions

Do I need anything else to use this flash hider?

Yes. The sRx Q.D. Flash Hider requires the YHM sRx Adapter (YHM-4400) to complete the mounting system. The adapter connects to your barrel threads and works with the quick-detach interface on the flash hider.

What thread pitch does this model use?

This model is 5/8"-32 TPI, designed for the sRx system. Yankee Hill also offers other thread sizes in the sRx short flash hider line (5/8" x 24 and 11/16" x 24), so verify your barrel threads before ordering.

Will this work with my existing suppressor or muzzle device?

The sRx Q.D. Flash Hider is part of the dedicated YHM sRx System and mounts via the sRx Adapter. It is not compatible with other quick-detach systems or muzzle devices from other manufacturers.

How much length does this add to my rifle?

The muzzle device itself is 1.8125" long, and it adds 1.175" of length to your barrel (when installed on a barrel with standard 0.6" threads). The short profile makes it ideal for rifles where compact length matters.