7.62 caliber 3D printed taper mount zero modification to the host weapon Full Auto Rated Forward Venting Breathable Technology for pressure stabilization and decreased felt blowback and back pressure to the host weapon Salt Air Resistant Monolithic implosion resistant design. Proprietary I/R non- reflective coating.Features: Length: 7.5in (190.5mm) Diameter: 1.6in. (40.64mm) Weight: 12.75 oz Material: Ti64 Finish: Proprietary I/R non- reflective coating Caliber: 7.62mm Attachment Method: 1.375-24 HUB Mount