PRO SERIES 30MM RIFLESCOPE RINGS - Low Height .90 Inches - 22.86mm The finishing touch to your rifle and optic combination. Pro Series rings combine rock-solid reliability and strength with high quality machining to ensure ultimate accuracy and consistency. Streamlined, lightweight and durable, these rings use four T-25 Torx-style socket cap screws for secure mounting. Weight (Per Ring): 44.7 Grams - 1.58 ozPrecision Machined 7075 T6 AluminumMatte Black AnodizedLaser Engraved Torque SpecificationsRobust #8 FastenersIntegrated Recoil LugFits Weaver and Picatinny RailsT-25 Torx ScrewsNote: These Vortex Pro Series Rings position the center of the riflescope tube at a height of .90 Inches (22.86mm) from the base. RECOMMENDED TORQUE SPECSBase Clamp Screws - 30in/lbsRing Screws - 18 in/lbs Weight (Per Ring): 44.7 Grams - 1.58 oz Included in the Box2 Pro Series RingsT-25 Torx-Style Wrench(2) additional screws