Description 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. Available in two heights for 1 inch tubes and four heights for 30mm tubes.PRODUCT DETAIL:Precision Machined 7075 T6 Aluminum Hard Coat Matte Black Anodized Laser Engraved Torque Specifications Robust #8 Fasteners Integrated Recoil Lug Fits Weaver and Picatinny Rails T-25 Torx Screws