MPN: BRK4050 / 4065

Features:

• Single 90-degree port reduces recoil and muzzle rise while keeping your rifle footprint short
• Allows the shooter to stay on target and take follow-up shots quickly
• Outside 13/16x16 thread compatible with Breek Arms CASTLE BLAST SHIELD C-Style Concussion Device
• Comes with a crush washer

Specifications:

• Caliber: 9mm
• Material: 4140 Prehard Steel
• Finish: Black Nitride
• Outer Diameter:
• Body: 0.75"
• Muzzle End: 0.91"
• Bore Diameter: 0.38"
• Weight: 2.1 oz.
• Length: 1.63"
• Thread: 1/2"-28 or 5/8"-24 TPI

Compatibility:

• 9mm barrel with 1/2"-28 or 5/8"-24 thread pitch
• Compatible with Breek Arms CASTLE BLAST SHIELD C-Style Concussion Device

Includes:

• 1x Breek Arms 2BO-S Short 9mm Muzzle Brake with Outside Thread
• 1x Crush Washer

Details:

For 9mm pistol-caliber carbine shooters aiming for precision and reduced recoil, the Breek Arms 2BO-S 9mm Short Muzzle Brake is a compact, effective solution. Engineered to keep muzzle movement in check, this single-port brake significantly reduces recoil, making follow-up shots smoother and more accurate—ideal for tactical training or competitive shooting.

Lightweight and Built to Last

Made from tough 4140 nitrided steel, the 2BO-S combines strength with a low-profile design. Its lightweight structure keeps your firearm balanced and easy to handle without adding bulk. The black nitride finish provides excellent wear and corrosion resistance, so it’s ready to stand up to high-volume shooting and diverse conditions.

Versatile Outside Threading for Accessories

One unique feature of the 2BO-S is its outside threading, which allows you to attach accessories like blast shields without removing the brake. This added flexibility lets you manage side blast and sound for a more comfortable shooting experience—for you and those nearby.

Perfect for Tactical and Range Use

Whether you’re practicing at the range or tackling dynamic shooting drills, this 9mm muzzle brake improves precision and control without weighing you down. It’s a practical upgrade for shooters looking to enhance control and performance in a sleek, lightweight design.