The Rearden Cyka Flash Hider features a .375 bore size with 24x1.5mm thread pitch and durable nitride finish in black. This precision-engineered muzzle device offers Atlas/atlasxl/plan B compatibility for versatile mounting options.Rearden Cyka Flash Hider Model.375 bore size for optimal performance24x1.5mm primary thread pitch with 5/8x24 compatibilityNitride finish in black for corrosion resistanceAtlas/atlasxl/plan B compatible mounting systemProfessional-grade muzzle device constructionDesigned for shooters who demand reliable flash suppression and compatibility with popular suppressor mounting systems this flash hider delivers consistent performance and versatile attachment options.