Made using old German casting and metal working techniques, the mount is engineered and built like a Panzer to absorb and deflect hard impacts. Built with a "buy once and use for life" mentality. This Picatinny sling mount loop features precision-engineered internal geometry that enhances positive lockup under tension, ensuring rock-solid stability when using a sling. Designed for maximum control under stress, it provides enhanced precision and reliability in demanding conditions. Grade 410 stainless steel for a lifetime of hard use in harsh environments. Each piece is inspected and individually polished by our skilled craftsmen and craftswomen to maximize smoothness to reduce snagging on gear. Metal surface further hardened by nitriding, a process used in hardening extreme use items. Nitriding provides a hardened matte black finish. Comes with wrench for installation. Lifetime Warranty. Will take up just under 25mm (less than 1") of pic rail. COMPATIBLE WITH 1913 PICATINNY RAILS. Weighs 1.5 ounces. BACKED BY THE CONTINENTAL LIBERTY WARRANTY -LIFETIME DUTY-GRADE GUARANTEE- If a product ever breaks or fails due to defects in materials or workmanship under normal use, we'll repair or replace it.