Comstock Armory Compact Plan-B Flash Hider, 1/2x28, 9mm, Black Nitride Compact flash hider compatible with common .900-24 adapters like the Comstock LPA, Q Plan-B, and Rearden Atlas. Unlike most flash hiders out there, the FHC is designed to redirect expanding gasses outwards which significantly reduces blast baffle wear. Product Specifications Manufacturer: Comstock Armory Model / Manufacturer SKU: FHC-12-9 UPC: 850069580063 Product type: Compact Flash Hider Material: 17-4 PH stainless steel Finish: Black nitride Weight: 1.7 oz Barrel threads: 1/2x28 Mounting system: Plan-B pattern; complete-system fitment required Bore compatibility: Up to 9mm Overall length: 1.6 inches Added length: 0.97 inches Shop the Comstock Armory FHC-12-9 at BattleHawk Armory for your compatible setup.