KAK Industry Plan B A7 Flash Hider 1/2x28 5.56 NATO - Nitride

The KAK Industry Plan B A7 Flash Hider is a precision-machined muzzle device built from 17-4 stainless steel with a tough nitride finish in black. Threaded 1/2x28, it is sized for .223 Remington / 5.56 NATO barrels and is also compatible with 9mm barrels using a .375" bore. The compact 1.85" overall length and 2.2 oz weight keep it tucked neatly behind most free-float handguards without adding meaningful bulk up front.

The A7 pulls double duty: it reduces flash signature as a standalone flash hider and also serves as a Plan B-compatible mount that accepts Rearden Atlas and Q Plan B suppressor adapters. Milled rear flats supply a 13/16" wrench surface for clean, easy installation and removal with standard armorer's tools. The 17-4 stainless body is heat-treated and nitride-coated for long service life at the muzzle, making this a straightforward, no-nonsense upgrade for any AR-pattern rifle, pistol, or pistol-caliber carbine running a 1/2x28 muzzle thread.