Yankee Hill sRx Q.D. Flash Hider | 1/2-28 | YHM-4405-28

The Yankee Hill Machine sRx Q.D. Flash Hider (YHM-4405-28) is a quick-detach muzzle device engineered for the YHM sRx mounting system. It is a low-profile flash hider intended to interface with the YHM sRx adapter family and the HUB 1-3/8″ x 24 mounting standard via the sRx adapter. The device adds minimal overall length while providing a consistent mounting taper for suppressor attachment when used with the corresponding sRx adapter.

This flash hider is intended for range and competition or any application where a low-profile, quick-detach suppressor mounting solution is desired. It is sold as a muzzle device and must be used with the YHM sRx adapter to achieve the quick-detach functionality.

Product Specifications

• The manufacturer part number is YHM-4405-28.
• The model designation is sRx.
• The thread pattern is 1/2″-28 tpi.
• The muzzle device length measures 2.30 inches.
• The length added to the barrel (on barrels with 0.6″ threads) is 1.675 inches.
• The outside diameter is 0.9375 inches.
• This device is designed to fit Yankee Hill SRX adapters.
• The product type is listed as Flash Hider.
• The package dimensions are 1.4 x 3.2 x 7.1 inches.
• The product is noted to include Includes Shim Kit as an additional feature.
• The UPC is 841812101543.

The YHM sRx Q.D. Flash Hider provides a compact mounting interface for shooters who want a low-profile muzzle device that integrates with the YHM sRx adapter system. Its short overall length and tapered front help keep the setup streamlined while enabling quick-detach suppressor compatibility when paired with the sRx adapter. The design is purposeful for users prioritizing a minimal-length suppressor mounting solution on compatible platforms.

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