Aero Precision Ultralight Scope Mounts are tough, reliable, and are a great complement to any high-end optic. Designed for AR style upper receivers with MIL-SPEC Picatinny rails, these scope mounts free you from unnecessary bulk, offering one of the lightest mounting solutions in the industry. Features a cross-slot keyway which ensures excellent recoil protection. The special purpose rifle scope mount profile features a rear ring that is pushed forward 2", resulting in better eye relief. These mounts are crafted from extruded 6061-T6 aluminum then Type III hardcoat anodized black.