The KAK Industry Plan B Universal Muzzle Device (brand part no. 410-2103-001) is threaded 1/2×28 for .223 Remington/5.56 NATO barrels. It’s built on KAK’s Plan B system, tapering before the threads for repeatable lockup and a proper seal against a Plan B suppressor mount.

Key Specifications

• Threaded 1/2×28.
• Chambered for .223 Remington/5.56 NATO.
• Built as a universal mount-style muzzle device.
• Cataloged by KAK as the Plan B Universal Muzzle Device.
• Uses KAK’s Plan B system, a taper-before-threads design for repeatable lockup.
• Compatible with Plan B suppressor mounts.
• Also functions as a standalone muzzle device with no suppressor attached.
• Part of KAK’s broader Plan B muzzle device lineup spanning multiple calibers and thread pitches.

Frequently Asked Questions

What does the taper on a Plan B device do? The taper ahead of the threads seats against a matching Plan B suppressor mount, giving a repeatable, properly sealed lockup.

What caliber is this muzzle device for? .223 Remington/5.56 NATO.

Is this a flash hider or a brake? It’s a universal mount-style device rather than a dedicated flash hider or brake, built to host a Plan B suppressor mount.

Buy the KAK Plan B Universal Muzzle Device, 1/2×28

Order the KAK Industry Plan B Universal Muzzle Device through our KAK Industry lineup at Schaefer Defense and we will ship it fast, fully insured, from our Lubbock, TX gun shop, along with more AR muzzle devices.