Yankee Hill 444524B sRx Q.D. Flash Hider Short Black Phosphate Steel with 11/16"-24 tpi for sRx Adapters

The Yankee Hill sRx Q.D. Flash Hider is a quick-detach muzzle device designed for shooters who want a clean, low-profile suppressor setup without the hassle of timing or shimming. This short flash hider in 11/16"-24 TPI threads pairs with YHM's sRx Adapter system to deliver a purpose-built mounting solution that prioritizes both aesthetics and practical field use. Whether you're building a precision rifle, an AR, or any barrel threaded to 11/16"-24 spec, this device adds minimal length and weight while setting up a rock-solid platform for sound suppression.

The sRx system's internal taper seal sits in front of the threads and locks your suppressor firmly in place, preventing gas and debris from accumulating where threads meet—a real advantage for long shooting sessions or rapid fire. Because the taper is large and consistent, you get repeatable mounting every time you attach and detach your suppressor, with zero need to re-time the device to your barrel. That's a game-changer for shooters who run suppressors on multiple rifles or swap them frequently. The Q.D. mounting interface attaches to the industry-standard HUB 1-3/8" x 24 thread standard, so your sRx adapter integrates seamlessly into the broader suppressor ecosystem.

Built from 4140 steel with a durable black phosphate finish, this flash hider is made to handle serious use without nickel-and-diming you with maintenance. At just 1.8125 inches long and 0.75 inches in diameter, it keeps your overall setup compact and maneuverable. If you decide to run it permanently attached to your barrel, that's an option too. Pair this with the YHM sRx Adapter (sold separately) and you've got a suppressor mounting system that works as well as it looks.

Key Features

• Quick-detach mounting with no timing or shimming required
• Internal taper seal prevents gas and debris buildup on threads
• Consistent, repeatable mounting every attachment
• Compact 1.8125" length adds minimal profile to your setup
• Compatible with YHM sRx Adapter and HUB 1-3/8" x 24 standard
• 4140 steel construction with black phosphate finish for durability
• Can be permanently attached to barrel if preferred
• Lightweight compared to many Q.D. mounting solutions

Specifications

Frequently Asked Questions

What adapter do I need to use this flash hider with a suppressor?

The Yankee Hill sRx Q.D. Flash Hider requires the YHM sRx Adapter (Model YHM-4400) to function as a complete quick-detach suppressor mounting system. The adapter interfaces with the flash hider's Q.D. mounting surface and connects to your suppressor.

Will this flash hider work on my barrel?

This flash hider is threaded for 11/16"-24 TPI. Your barrel must be threaded to this specification for a proper fit. The device adds 1.175 inches to barrel length on standard 0.6" threaded barrels.

Do I need to time or shim this muzzle device?

No. The sRx system's internal taper seal design eliminates the need for timing or shimming. The large taper in front of the threads locks your suppressor in place and creates a consistent seal every time you attach it.

Can I permanently attach this to my barrel instead of using it as a Q.D. mount?

Yes. The sRx Short Flash Hider can be permanently attached to your firearm's barrel if you prefer a fixed setup rather than a quick-detach configuration.