
Availability: In Stock
The Midwest Industries MIAR30MB1 is a 30-caliber AR muzzle brake built for shooters who want real recoil management without the complexity of a full suppressor system. Threaded in the standard 5/8"-24 pitch, this black phosphate steel brake bolts straight onto most modern .30 caliber AR platforms—whether you're running .308 Winchester, 6.5 Creedmoor, or another 30 cal cartridge. If you shoot precision rifle matches, hunt at distance, or spend serious time at the range, a quality muzzle brake lets you stay on target faster and spot your own hits, especially important on a second or follow-up shot.
Black phosphate steel is a time-tested finish in the firearms world—tough, corrosion-resistant, and designed to handle field use without babying. Midwest Industries has built their reputation on no-nonsense components that work, and this brake reflects that straightforward engineering approach. The manufacturing is precise enough to ensure reliable thread fit and repeatability, so once you dial it in, it stays put.
Installation is straightforward for anyone comfortable with basic gun maintenance: index it for your sight picture, apply appropriate threadlocker if you choose, and torque to spec. The 5/8"-24 threads are the dominant standard on .30 caliber ARs, so compatibility is broad—but always verify your barrel's thread pitch before ordering.
| Caliber | 30 Cal (.308 Winchester, 6.5 Creedmoor, etc.) |
| Thread Pitch | 5/8"-24 tpi |
| Material | Black Phosphate Steel |
| Manufacturer | Midwest Industries |
| Model | MIAR30MB1 |
The MIAR30MB1 is threaded 5/8"-24 tpi and designed for .30 caliber ARs. Before purchasing, confirm your barrel is threaded 5/8"-24 and is chambered in a .30 caliber cartridge such as .308 Winchester, 6.5 Creedmoor, or similar. If your barrel is threaded differently, this brake will not fit.
A muzzle brake reduces felt recoil and muzzle rise through expansion chambers and porting, allowing you to control the gun and stay on target. A suppressor reduces sound and has a different mechanical design. Both can reduce recoil, but a brake is lighter, cheaper, and doesn't require federal licensing like a suppressor does.
Black phosphate is a proven, durable finish that resists corrosion and handles field use well. It will show wear over time—that's normal and doesn't indicate a loss of function. If you want a shinier appearance or maximum corrosion resistance in saltwater or extreme climates, other finishes may suit you better, but for standard hunting and range use, black phosphate is reliable.



SKU: 115726274 • Width: 4.3in • Height: 1.3in • Depth: 5.7in • Weight: 0.31oz





Availability: In Stock
The Midwest Industries MIAR30MB1 is a 30-caliber AR muzzle brake built for shooters who want real recoil management without the complexity of a full suppressor system. Threaded in the standard 5/8"-24 pitch, this black phosphate steel brake bolts straight onto most modern .30 caliber AR platforms—whether you're running .308 Winchester, 6.5 Creedmoor, or another 30 cal cartridge. If you shoot precision rifle matches, hunt at distance, or spend serious time at the range, a quality muzzle brake lets you stay on target faster and spot your own hits, especially important on a second or follow-up shot.
Black phosphate steel is a time-tested finish in the firearms world—tough, corrosion-resistant, and designed to handle field use without babying. Midwest Industries has built their reputation on no-nonsense components that work, and this brake reflects that straightforward engineering approach. The manufacturing is precise enough to ensure reliable thread fit and repeatability, so once you dial it in, it stays put.
Installation is straightforward for anyone comfortable with basic gun maintenance: index it for your sight picture, apply appropriate threadlocker if you choose, and torque to spec. The 5/8"-24 threads are the dominant standard on .30 caliber ARs, so compatibility is broad—but always verify your barrel's thread pitch before ordering.
| Caliber | 30 Cal (.308 Winchester, 6.5 Creedmoor, etc.) |
| Thread Pitch | 5/8"-24 tpi |
| Material | Black Phosphate Steel |
| Manufacturer | Midwest Industries |
| Model | MIAR30MB1 |
The MIAR30MB1 is threaded 5/8"-24 tpi and designed for .30 caliber ARs. Before purchasing, confirm your barrel is threaded 5/8"-24 and is chambered in a .30 caliber cartridge such as .308 Winchester, 6.5 Creedmoor, or similar. If your barrel is threaded differently, this brake will not fit.
A muzzle brake reduces felt recoil and muzzle rise through expansion chambers and porting, allowing you to control the gun and stay on target. A suppressor reduces sound and has a different mechanical design. Both can reduce recoil, but a brake is lighter, cheaper, and doesn't require federal licensing like a suppressor does.
Black phosphate is a proven, durable finish that resists corrosion and handles field use well. It will show wear over time—that's normal and doesn't indicate a loss of function. If you want a shinier appearance or maximum corrosion resistance in saltwater or extreme climates, other finishes may suit you better, but for standard hunting and range use, black phosphate is reliable.
SKU: 115726274 • Width: 4.3in • Height: 1.3in • Depth: 5.7in • Weight: 0.31oz


