Comstock Armory Full Size Plan-B Muzzle Brake, 1/2x28, 5.56, Black Nitride The Comstock Armory MBL-12-22-PW is a full size muzzle brake combining 1/2x28 barrel threads with a Plan-B suppressor-mount interface. Its 5.56 configuration, 17-4 PH stainless steel construction and black nitride finish identify this exact version. The 2.14-inch body weighs 2.3 ounces and adds approximately 1.5 inches beyond the muzzle. These separate dimensions help distinguish the device's physical size from its contribution to the overall setup. Shop the Comstock Armory MBL-12-22-PW at BattleHawk Armory for your compatible 1/2x28 setup. Recoil Reduction and Blast-Baffle Protection The brake geometry helps reduce recoil and provides a sacrificial surface ahead of a compatible suppressor's blast baffle. The steel body combines those functions with the mounting interface, making the device useful when recoil management and suppressor compatibility are both priorities. The rotationally symmetric body does not require timing shims. Its black nitride treatment gives the stainless steel a durable, dark finish, while the wrench flats provide a dedicated tool interface. Compatibility and Configuration The suppressor-side interface fits compatible 0.900-24 Plan-B adapters, including Comstock LPA, Q Plan-B and Rearden Atlas. Barrel threading, bore clearance and the suppressor's internal space must all suit the intended configuration. The muzzle device does not establish the caliber rating of the suppressor. This version includes a predrilled pin-and-weld hole. That feature identifies the supplied part; a finished barrel assembly requires its own dimensional and fitment verification by a qualified professional. Product Specifications Manufacturer: Comstock Armory Model / Manufacturer SKU: MBL-12-22-PW UPC: 850069580087 Product type: Full Size Muzzle Brake Material: 17-4 PH stainless steel Finish: Black nitride Weight: 2.3 oz Barrel threads: 1/2x28 Mounting system: Plan-B pattern; complete-system fitment required Bore compatibility: .223 / 5.56mm Overall length: 2.14 inches Added length: approx. 1.5 inches Frequently Asked Questions Is a suppressor included?No. This product is the muzzle device. A compatible suppressor and suppressor-side adapter are separate components. Does the thread pitch determine caliber compatibility?No. Barrel threads and bore clearance are separate specifications. Both must match the firearm, and the complete suppressor system must be appropriate for the cartridge. Choose the Comstock Armory MBL-12-22-PW at BattleHawk Armory for a correctly matched full size muzzle brake and Plan-B mounting interface.