One-piece, precision machined Weaver rail lets you mount scopes, red-dot sights, ghost-ring sights, and other optics using Weaver-style rings. Plenty of cross-slots allow optimal ring spacing for a wide range of scopes including compact, full-size, and extra-long scope tubes. Low-profile, open center design allows use of front sight when optics are removed. Lightweight aluminum reduces weight without compromising strength. Hardcoat anodized for additional strength and wear resistance. Attaches to factory drilled and tapped receivers using the included steel mounting screws. Mfg: Atk SPECS: Aluminum, anodized finish, matte black. Steel mounting screws. Short Action (SA) - 57⁄8” (14.9cm) long. Long Action (LA) - 6¼” (15.8cm) long. Fits Rem 700, 78, 40X-L, 721, and 725. Accepts Weaver-style rings.