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Kak Industry
The KAK PLAN B A2 FH 1/2X28 .223-9mm muzzle device is engineered for shooters who want repeatable, rock-solid suppressor attachment without guesswork. Built on KAK Industry's proven Plan B system, this muzzle brake uses a tapered design followed by threads to create a consistent lockup and reliable seal every time you thread on a compatible suppressor hub. If you're running a suppressor on your .223 or 9mm rifle and need a precision interface that won't compromise your warranty or performance, this is the right foundation.
Machined from 17-4 stainless steel with a durable nitride finish, the Plan B A2 FH is built to handle the recoil impulse and corrosive environments hunters and shooters face downrange. The 1/2X28 thread pitch is standard across modern .223 Remington and 9mm platforms, and the muzzle device weighs just 2.5 ounces—light enough that it won't throw off your rifle's balance or add unnecessary mass to your barrel. Milled flats on the rear make installation straightforward with a wrench, and the compact 1.850-inch length keeps your rig's profile efficient.
Installation is straightforward: apply Rocksett to the threads, torque to 20–25 ft-lbs, and you're done. The Plan B design is purpose-built to work with Plan B suppressor hubs, so you know you're pairing compatible components. Because some suppressor manufacturers condition their warranties on the use of specific muzzle devices, running a Plan B system ensures you won't void coverage or run into compatibility headaches down the line.
| Thread Pitch | 1/2X28 |
| Caliber Compatibility | .223 Remington, 9mm |
| Material | 17-4 Stainless Steel |
| Finish | Nitride |
| Overall Length | 1.850 inches |
| Weight | 2.5 ounces |
| Installation Torque | 20–25 ft-lbs (with Rocksett) |
The Plan B A2 FH is designed to work with Plan B suppressor hubs. It is not a universal muzzle device; using it with suppressors from other manufacturers may void their warranty or cause fit issues. Check with your suppressor manufacturer to confirm Plan B compatibility before purchase.
The KAK PLAN B A2 FH features a 1/2X28 thread pitch, the standard for modern .223 Remington and 9mm rifles.
Apply Rocksett to the threads, install the device on your barrel, and torque to 20–25 ft-lbs using the milled flats with a wrench. The tapered design ensures a consistent seal with each installation.
The Plan B A2 FH weighs 2.5 ounces, keeping the impact on your rifle's overall balance and handling minimal.
Kak Industry
The KAK PLAN B A2 FH 1/2X28 .223-9mm muzzle device is engineered for shooters who want repeatable, rock-solid suppressor attachment without guesswork. Built on KAK Industry's proven Plan B system, this muzzle brake uses a tapered design followed by threads to create a consistent lockup and reliable seal every time you thread on a compatible suppressor hub. If you're running a suppressor on your .223 or 9mm rifle and need a precision interface that won't compromise your warranty or performance, this is the right foundation.
Machined from 17-4 stainless steel with a durable nitride finish, the Plan B A2 FH is built to handle the recoil impulse and corrosive environments hunters and shooters face downrange. The 1/2X28 thread pitch is standard across modern .223 Remington and 9mm platforms, and the muzzle device weighs just 2.5 ounces—light enough that it won't throw off your rifle's balance or add unnecessary mass to your barrel. Milled flats on the rear make installation straightforward with a wrench, and the compact 1.850-inch length keeps your rig's profile efficient.
Installation is straightforward: apply Rocksett to the threads, torque to 20–25 ft-lbs, and you're done. The Plan B design is purpose-built to work with Plan B suppressor hubs, so you know you're pairing compatible components. Because some suppressor manufacturers condition their warranties on the use of specific muzzle devices, running a Plan B system ensures you won't void coverage or run into compatibility headaches down the line.
| Thread Pitch | 1/2X28 |
| Caliber Compatibility | .223 Remington, 9mm |
| Material | 17-4 Stainless Steel |
| Finish | Nitride |
| Overall Length | 1.850 inches |
| Weight | 2.5 ounces |
| Installation Torque | 20–25 ft-lbs (with Rocksett) |
The Plan B A2 FH is designed to work with Plan B suppressor hubs. It is not a universal muzzle device; using it with suppressors from other manufacturers may void their warranty or cause fit issues. Check with your suppressor manufacturer to confirm Plan B compatibility before purchase.
The KAK PLAN B A2 FH features a 1/2X28 thread pitch, the standard for modern .223 Remington and 9mm rifles.
Apply Rocksett to the threads, install the device on your barrel, and torque to 20–25 ft-lbs using the milled flats with a wrench. The tapered design ensures a consistent seal with each installation.
The Plan B A2 FH weighs 2.5 ounces, keeping the impact on your rifle's overall balance and handling minimal.
