Yankee Hill Machine115647974
Yankee Hill 4445MB32 sRx Q.D. Muzzle Brake Short Black Phosphate Steel with 5/8"-32 tpi for sRx AdaptersOriginal price was $84.75. Current price is $76.50.
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Availability: In Stock
The Yankee Hill 4445MB24 sRx Q.D. muzzle brake is a short, low-profile muzzle device engineered for shooters who want clean aesthetics without sacrificing functionality. Threaded 5/8"-24 TPI, this brake is the anchor point of Yankee Hill's sRx suppressor mounting system—a quick-detach interface that eliminates timing and shimming headaches while keeping your suppressor setup compact and lightweight. If you're building or upgrading a rifle with suppressor-ready threads and want a no-fuss, no-wobble mounting solution, this is the piece that makes the sRx system work.
The design centers on simplicity and durability. Inside the brake sits an internal taper seal that locks suppressors in place with a gas-tight fit, preventing debris and carbon from building up on threads—a common maintenance headache with traditional muzzle device mounting. The brake itself adds minimal length (1.6875 inches) and weight, making it ideal for hunters, precision shooters, and anyone running a short-barreled rifle or shotgun who wants a compact suppressed setup. The black phosphate steel finish handles recoil and the elements without ceremony.
This brake pairs exclusively with the YHM sRx Adapter (sold separately), which threads onto the standard 1-3/8" × 24 HUB interface. Once that adapter is mounted, your suppressor attaches via the Q.D. system with zero guesswork. It's built for permanent or temporary barrel mounting, depending on your needs—no moving parts, no shims, no timing tools required. If you run a suppressor on centerfire rifles or pistols and want a streamlined, robust mounting solution, the sRx brake is worth a hard look.
| Thread Size | 5/8"-24 TPI |
| Length | 1.6875" |
| Diameter | 0.75" |
| Material | 4140 Steel |
| Finish | Black Phosphate |
| Mounting Type | Quick Detach (requires YHM sRx Adapter) |
| Model Number | YHM-4445-MB-24 |
The Yankee Hill 4445MB24 is part of the YHM sRx (Suppressor Rx) System. It works with the YHM sRx Adapter, which mounts to standard 1-3/8" × 24 HUB threads. Once the adapter is attached to your barrel, suppressors connect via quick detach without shimming or timing.
This brake is threaded 5/8"-24 TPI, which is standard for many centerfire rifle and pistol barrels. Verify your barrel's thread pitch before ordering—Yankee Hill offers this brake in other thread patterns (5/8" × 32 and 11/16" × 24) if your barrel requires a different size.
Yes. This brake must be paired with the YHM sRx Adapter (model YHM-4400), which is sold separately. The adapter threads onto your barrel's existing 1-3/8" × 24 HUB interface, then the brake and your suppressor attach via quick detach to that adapter.
The brake itself is 1.6875 inches long. On a barrel with 0.6" of threaded area, it adds approximately 1.675 inches to overall barrel length—one of the shortest options in the sRx lineup for compact suppressed setups.
SKU: 115728175 • Width: 3.1in • Height: 1.2in • Depth: 4.6in • Weight: 0.19oz
Availability: In Stock
The Yankee Hill 4445MB24 sRx Q.D. muzzle brake is a short, low-profile muzzle device engineered for shooters who want clean aesthetics without sacrificing functionality. Threaded 5/8"-24 TPI, this brake is the anchor point of Yankee Hill's sRx suppressor mounting system—a quick-detach interface that eliminates timing and shimming headaches while keeping your suppressor setup compact and lightweight. If you're building or upgrading a rifle with suppressor-ready threads and want a no-fuss, no-wobble mounting solution, this is the piece that makes the sRx system work.
The design centers on simplicity and durability. Inside the brake sits an internal taper seal that locks suppressors in place with a gas-tight fit, preventing debris and carbon from building up on threads—a common maintenance headache with traditional muzzle device mounting. The brake itself adds minimal length (1.6875 inches) and weight, making it ideal for hunters, precision shooters, and anyone running a short-barreled rifle or shotgun who wants a compact suppressed setup. The black phosphate steel finish handles recoil and the elements without ceremony.
This brake pairs exclusively with the YHM sRx Adapter (sold separately), which threads onto the standard 1-3/8" × 24 HUB interface. Once that adapter is mounted, your suppressor attaches via the Q.D. system with zero guesswork. It's built for permanent or temporary barrel mounting, depending on your needs—no moving parts, no shims, no timing tools required. If you run a suppressor on centerfire rifles or pistols and want a streamlined, robust mounting solution, the sRx brake is worth a hard look.
| Thread Size | 5/8"-24 TPI |
| Length | 1.6875" |
| Diameter | 0.75" |
| Material | 4140 Steel |
| Finish | Black Phosphate |
| Mounting Type | Quick Detach (requires YHM sRx Adapter) |
| Model Number | YHM-4445-MB-24 |
The Yankee Hill 4445MB24 is part of the YHM sRx (Suppressor Rx) System. It works with the YHM sRx Adapter, which mounts to standard 1-3/8" × 24 HUB threads. Once the adapter is attached to your barrel, suppressors connect via quick detach without shimming or timing.
This brake is threaded 5/8"-24 TPI, which is standard for many centerfire rifle and pistol barrels. Verify your barrel's thread pitch before ordering—Yankee Hill offers this brake in other thread patterns (5/8" × 32 and 11/16" × 24) if your barrel requires a different size.
Yes. This brake must be paired with the YHM sRx Adapter (model YHM-4400), which is sold separately. The adapter threads onto your barrel's existing 1-3/8" × 24 HUB interface, then the brake and your suppressor attach via quick detach to that adapter.
The brake itself is 1.6875 inches long. On a barrel with 0.6" of threaded area, it adds approximately 1.675 inches to overall barrel length—one of the shortest options in the sRx lineup for compact suppressed setups.
SKU: 115728175 • Width: 3.1in • Height: 1.2in • Depth: 4.6in • Weight: 0.19oz