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Questions & Answers
What caliber is this brake??

Unsure of the exact caliber but the threads are 5/8 x 24 and it fits an entire .308 Winchester (case and bullet) through it

by Bill, Verified Owner, March 15, 2025
Customer Reviews
Most Recent Reviews
Funtional but arrived very dirty by Bill, Verified Owner, March 15, 2025
I just received this YHM muzzle brake. I have ordered multiple other SRx muzzle devices from Optics Planet without issue. This one arrived and I noticed the return address was from “Optics Planets Returns.” When I opened it, it was in the proper pack...
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  • Yankee Hill Machine sRx Thread Protector, Compatible with sRx Muzzle Devices, Black, YHM-4450
As low as $119.74
You Save Up to 23%
OP Bucks$2.44

Product Info for Yankee Hill Machine sRx Q.D. Muzzle Brake

YHMs line of sRx products were designed with aesthetics and ease-of-use as the top priorities, and that is no different for the YHM sRx Muzzle Brake. This Q.D. Muzzle Brake is compatible Q.D. Adapter/Mounting Interface attaches to the industry standard (HUB) 1-3/8 x 24 threads. It features an internal taper seal-in front of the threads-that locks your suppressor on and forms a tight seal to contain gasses while in-use. This means no gasses or debris can build up on the threads. The sRx Muzzle Brake must be paired with The YHM sRx Adapter (YHM-4400). The sRx Muzzle Brake adds minimal length and weight to the suppressor set up, while also allowing you to reap all the benefits of the new YHM sRx System-when used in conjunction with The sRx Adapter. The full YHM sRx (Suppressor Rx) System will be the obvious choice for someone looking for a sleek, low-profile, suppressor set up-thats also built to withstand rigorous use. This is their prescription for the shooter who cares about the aesthetics of their build as well as its ease-of-use. Some of the exciting new benefits of the YHM sRx System are as follows: TIMELESS. (No need to shim/time to barrel). Small/low profile. No moving parts. Large taper in front of the threads allows for consistent mounting. Lighter than many Q.D. mounting offerings on the market. Can be permanently attached to firearm barrel needed. The YHM sRx System-just what the doctor ordered!image

WARNING: California`s Proposition 65

Specifications for Yankee Hill Machine sRx Q.D. Muzzle Brake:

Manufacturer: Yankee Hill Machine
Color: Black
Finish: Phosphate
Fabric/Material: Steel
Gun Make: Universal
Gun Model: Universal
Condition: New

Package Contents:

  • Yankee Hill Machine sRx Q.D. Muzzle Brake

Yankee Hill Machine sRx Q.D. Muzzle Brake Orderable Models

List of Orderable Models

  • Yankee Hill Machine 4445MB32 sRx Q.D. Muzzle Brake Short Black Phosphate Steel with 5/8in-32 tpi for sRx Adapters, 4445MB32 , MPN: 4445MB32 , UPC: 841812101802 , Code: YHM-BMB-4445MB24-4445MB32
  • Yankee Hill Machine 4445MB24 sRx Q.D. Muzzle Brake Short Black Phosphate Steel with 5/8in-24 tpi for sRx Adapters, 4445MB24 , MPN: 4445MB24 , UPC: 841812101796 , Code: YHM-BMB-4445MB24-4445MB24
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