Description
MPN: KAK-1-2-36-BIG-HOLE-BRAKE
Features:
- Large Single-Port Brake Design: Oversized expansion chamber efficiently redirects gases to provide excellent recoil reduction for 9mm PCCs and carbines
- Reduces Muzzle Rise: Two upward-facing compensation ports help keep the muzzle flatter for faster follow-up shots and improved control
- Compact & Lightweight: Compact profile delivers effective recoil management without adding unnecessary length or weight
- Optimized for 9mm Platforms: Designed specifically for 9mm barrels with 1/2x36 threads, making it ideal for pistol-caliber carbines and AR-9 builds
- Heat-Treated for Durability: Hardened steel construction provides long-lasting strength and resistance to heavy use
- Phosphate Coated Finish: Corrosion-resistant phosphate finish protects against wear and harsh environmental conditions
- Milled Flats for Easy Installation: Integrated wrench flats simplify installation and removal
- Crush Washer Not Included: Allowing you to use your preferred timing hardware
- Made in the USA: Proudly precision machined by KAK Industry
Specifications:
- Caliber: 9mm
- Material: Steel
- Finish: Phosphate
- Weight: 2.5 oz.
- Length: 1.75"
- Outer Diameter: 0.862"
- Bore Diameter: 0.41"
- Thread: 1/2"-36
Compatibility:
- Any 9mm barrel with 1/2"-36 thread pitch
Includes:
- 1x KAK Industry 9mm Big Hole Brake
Note: Crush washer is NOT INCLUDED.
Details:
The KAK Industry 9mm Big Hole Brake takes the same straightforward design as its rifle-caliber counterpart and adapts it for pistol-caliber carbines. Rather than using multiple chambers or an oversized body, it relies on a large single expansion port to help tame recoil while keeping the overall profile compact.
For PCCs, that means a muzzle device that doesn't add unnecessary bulk but still helps the gun stay flatter during rapid strings.
Simple Design, Effective Control
The large expansion chamber redirects gases to reduce rearward recoil, while the top ports help counter muzzle rise. On a 9mm PCC, that translates to quicker sight recovery and a rifle that tracks more naturally between shots.
It's a clean, uncomplicated design that focuses on making the gun easier to control without overengineering the solution.
Built To Last
Every Big Hole Brake is heat treated for added strength and finished with a phosphate coating to resist corrosion and wear. Milled wrench flats are machined into the body, making installation easier and providing a secure surface for proper torque.
Like other KAK muzzle devices, it's fully precision machined in-house, ensuring consistent fit and finish.
Compatible With 1/2×36 Threaded 9mm Barrels
This version is designed for 9mm barrels threaded 1/2×36, making it compatible with many AR-9 platforms and other firearms using the same thread pattern.
Please note that a crush washer is not included, so one should be supplied if your installation requires timing.
A Practical Upgrade For PCC Builds
The Big Hole Brake doesn't try to be the most aggressive brake on the market. Instead, it offers a balanced combination of compact size, effective recoil management, and durable construction.
If you're looking for a simple muzzle brake that complements a 9mm PCC without adding unnecessary length or weight, the KAK Industry 9mm Big Hole Brake is a solid choice for both range and recreational use.
