The Kak Industry Plan B 4 Prong FH 5/8x24 .375" is a compact, precision-machined flash hider designed specifically for shooters running Plan B–style suppressor hubs. Built from durable 17-4 stainless steel and finished in nitride, this four-prong muzzle device uses a tapered section followed by threads to promote repeatable lockup and a clean seal between the flash hider and compatible suppressor adapters.

The milled 13/16" rear flats simplify installation, and Kak Industry recommends using Rocksett and 20–25 ft-lbs of torque for secure mounting. Ideal for range use, training, and general shooting with a suppressor-ready setup, it reflects Kak Industry’s focus on thoughtful design and in-house machining quality.

• Manufacturer: KAK Industry
• Model: Plan B 4 Prong FH 5/8x24 .375"
• Material: 17-4 Stainless Steel
• Finish: Nitride
• Bore Diameter: .375"
• Rear Flats Size: 13/16"
• Compatibility: Plan B Suppressor Hubs