The KAK Industry Plan B Universal Muzzle Device (brand part no. 411-2103-001) is threaded 5/8×24 for .308/7.62 NATO barrels. Plan B devices taper before the threads, giving repeatable lockup and a proper seal against a Plan B suppressor mount. KAK recommends Rocksett and 20-25 ft-lbs of torque for installation, and notes that some suppressor makers won’t honor a warranty claim if a different brand’s muzzle device is used with their can.

Key Specifications

• Threaded 5/8×24.
• Chambered for .308 / 7.62 NATO.
• Built as a universal mount-style muzzle device.
• Cataloged by KAK as the Plan B Universal Muzzle Device.
• Tapers before the threads for repeatable lockup and a proper seal.
• Compatible with Plan B suppressor mounts.
• KAK recommends Rocksett and 20-25 ft-lbs of torque for installation.
• Some suppressor makers may void their warranty if a different brand’s muzzle device is used.

Frequently Asked Questions

How should this be installed? KAK recommends using Rocksett thread locker and torquing to 20-25 ft-lbs.

Will my suppressor’s warranty still apply? Some suppressor manufacturers won’t honor a warranty claim if a different brand’s muzzle device is used with their can, so check with your suppressor’s maker first.

What caliber is this muzzle device for? .308 / 7.62 NATO.

Buy the KAK Plan B Universal Muzzle Device, 5/8×24

Order the KAK Industry Plan B Universal Muzzle Device through our KAK Industry lineup at Schaefer Defense, a Lubbock, TX gun shop, along with more AR muzzle devices.