The Yankee Hill Machine (YHM) .30 Cal Q.D. Mount / Flash Hider is designed to replace the standard M14 flash hider and sight assembly. Installation retains the rifle’s sight post by reinstalling the stock sight post onto the YHM mount, and the assembly is intended for use with YHM’s Resonator and Phantom .30 Cal Q.D. sound suppressors. The unit preserves the flash-hiding characteristics of the original Phantom-style device and is finished for durability.
Consult the product notes for fit restrictions: the sight base does not fit M14 models with barrels 18.5 inches or shorter. The device is not compatible with YHM 5.56 Q.D. sound suppressors.
Key Specifications
- Designed to replace the standard M14 flash hider and sight assembly for M14 rifles.
- Thread pitch is .595 inches (19/32).
- Intended for use with YHM Resonator and Phantom .30 Cal Q.D. sound suppressors.
- Finish/treatment listed as Melonite.
- Color/finish is specified as Black.
- The sight base does not fit barrels 18.5 inches or shorter.
- Installation torque is specified at 20 to 30 ft-lbs.
- Manufacturer text lists the device for .30 caliber configuration.
- Manufacturer text lists flash hider length as 3 inches.
- Manufacturer text lists weight as 5.536 ounces.
This YHM Q.D. mount and flash hider is a purpose-built replacement assembly for M14 platforms that need a durable, suppressor-compatible mounting option. With a Melonite finish and compatibility with YHM .30-cal Q.D. silencers, it is well suited for shooters seeking a reliable, OEM-replacement style mount that preserves sighting while enabling Q.D. suppressor attachment where specified. The straightforward design and specified installation torque make fitment and serviceability clear for technically minded users.









