The Yankee Hill Machine sRx Q.D. Flash Hider Short is a compact muzzle device engineered for shooters running the sRx suppressor mounting system. This short flash hider threads onto 5/8"-24 TPI barrels and works in tandem with sRx adapters to deliver a low-profile, quick-detach suppressor platform that minimizes added length and weight to your rifle. If you're already invested in the YHM sRx ecosystem or building a suppressed rifle that prioritizes a compact footprint, this flash hider gives you the mounting interface you need without the extra bulk.

The sRx system's defining feature is its internal taper seal, which locks directly in front of the threads to create a gas-tight seal between the muzzle device and suppressor. This design keeps gasses and carbon debris out of the threads—a genuine advantage over traditional muzzle brakes or flash hiders on threaded suppressors, where buildup can make removal a frustration. Built from 4140 steel with black phosphate finish, the short flash hider is engineered to handle sustained use and holds up well to the rigors of suppressed shooting.

At just 1.8125 inches long and measuring 0.75 inches in diameter, this muzzle device adds minimal length to your setup, making it ideal if you're concerned about overall barrel length or want a rifle that handles easily in the field or from a bench. Keep in mind that the sRx adapter is sold separately and is required to complete the suppressor mounting interface.

Key Features

• Internal taper seal prevents gas and debris buildup on threads
• Compact design adds minimal length and weight to suppressed rifle
• Quick-detach system works with YHM sRx suppressor adapters
• 4140 steel construction with black phosphate finish for durability
• Fits 5/8"-24 TPI threaded barrels

Specifications

Muzzle Thread Size	5/8"-24 TPI
Material	4140 Steel
Finish	Black Phosphate
Length	1.8125 inches
Diameter	0.75 inches
System Type	YHM sRx Quick-Detach
Model	444524

Frequently Asked Questions

What suppressor adapters does this flash hider work with?

The sRx Q.D. Flash Hider is designed to work with YHM sRx suppressor adapters. The sRx adapter is sold separately and mounts to this flash hider to create the quick-detach interface for compatible YHM suppressors.

What thread pitch does this muzzle device fit?

This flash hider threads onto barrels with 5/8"-24 TPI (threads per inch) muzzle threads.

Can I use this flash hider without a suppressor?

Yes. This is a standalone flash hider that can be used on any 5/8"-24 TPI barrel independently. If you decide to run a suppressor later, you'll need the separate sRx adapter to integrate it into that mounting system.

What is the internal taper seal and why does it matter?

The internal taper seal locks in front of the threads and creates a tight gas seal between the muzzle device and suppressor. This design prevents gasses and carbon debris from building up on the threads, making suppressor removal much easier and keeping your system cleaner during extended shooting sessions.