Yankee Hill Machine M14 QD flash hider with 19/32-32 (.595″) thread pitch. Replaces the standard M14 flash hider and sight assembly and pairs with YHM .30 Cal Q.D. suppressors. Not compatible with barrels 18.5″ or shorter.
This Yankee Hill Machine M14 QD flash hider is designed to replace the standard M14 flash hider and integrated sight assembly. It provides the mounting interface for YHM .30 caliber Q.D. sound suppressors and retains the flash-hiding characteristics of the original Phantom-style assembly. The unit is finished in Melonite and intended for users who need a dedicated QD mount for .30-caliber suppressors on M14-pattern rifles.
Typical applications include mounting a compatible Q.D. .30-caliber suppressor for precision shooting and use in range-based training where suppressed operation and flash reduction are desired. It is not intended for use with 5.56 QD suppressors and the sight base does not fit M14 models with barrels 18.5″ or shorter.
Product Specifications
The manufacturer is listed as Yankee Hill Machine.
The product name is YHM M14 QD Flash Hider.
The manufacturer’s part number is YHM-4302-M14-SA.
The UPC is 841812100799.
The thread pitch is listed as .595″ (19/32).
The thread designation is shown as 19/32-32.
The overall length is listed as 3 inches.
The finish/material is specified as Melonite.
The color is specified as Black.
Package dimensions are listed as 2.15 x 5.15 x 8.05.
The listed height dimension is 2.1500.
The listed width dimension is 5.1500.
The sight base does not fit models with 18.5″ or shorter barrels.
The device is noted as not compatible with YHM 5.56 QD sound suppressors.
The recommended installation torque is 20 to 30 ft-lbs.
This M14 QD mount assembles in place of the factory flash hider and sight unit to provide a secure Q.D. attachment point for compatible .30-caliber suppressors. Its Melonite finish offers corrosion resistance for range use, and the included thread form and torque guidance make installation straightforward for experienced armorers or gunsmiths. The unit is a practical choice when you need a dedicated Q.D. mounting solution for M14-pattern rifles used in precision or training contexts.
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