YHM sRx Short QD Flash Hider – .578-28 Thread

The YHM sRx Short Flash Hider (MPN YHM-4445-28B) must be paired with the YHM sRx Adapter to mount a QD suppressor.

Key Specifications

• Must be paired with the YHM sRx Adapter (YHM-4400) to mount a suppressor
• No shimming or timing to the barrel required
• Small, low-profile design with no moving parts
• Internal taper locks the suppressor on with a tight gas seal
• Lighter than many other QD mounting options
• Can be permanently attached to the barrel if desired
• 4140 steel construction with a black phosphate finish
• .578-28 thread pitch, 1.8125-inch length, .75-inch diameter

Frequently Asked Questions

Does this flash hider work on its own?
No — it must be paired with the YHM sRx Adapter (YHM-4400) to mount a suppressor.

Do I need to shim or time it to the barrel?
No — the sRx system’s internal taper mounts consistently without shimming.

What’s it made of?
4140 steel with a black phosphate finish.

Buy the YHM sRx Short Flash Hider

Build a low-profile QD suppressor mount with this sRx flash hider from Yankee Hill Machine. Order from a Lubbock, TX gun shop in our AR muzzle device selection.