The BCM (Bravo Company Manufacturing) A/T Optic Riser 525-10X5 is designed to elevate Picatinny-mounted optics and accessories on AR platform firearms. Precision-machined from aluminum with a black anodized finish, this 6.125 long riser mount features a 15-slot Picatinny rail interface standard. It provides a 0.50 mount height elevation to optimize optical centerline, facilitate proper cheek weld, and offer additional receiver rail space for optics, magnifiers, or backup sights. Rings are not included. Safety Note Always ensure the firearm is unloaded before installing or adjusting any optics or bases. Verify proper torque specifications during installation. Improper mounting may affect accuracy and safety.