Warne Mountain Tech rails offer shooters the advantage of a consistent mounting platform across multiple firearms enhanced ability to adjust proper eye relief and superior alignment of ring mounts. With self-centering hardware and aerospace grade materials our Mountain Tech rails provide a lightweight and robust platform for your rifle. - Precision CNC machined from 7075/T6 aluminum for a high strength & lightweight platform - Mil-Spec hardcoat anodized finish for abrasion and corrosion resistance. - Bases feature black zinc coated hardware for “Element Proof” protection. - Self centering tapered T-15 Torx screws. - Fits Picatinny & Weaver style mounts and are NATO-STANAG compatible.