This A/T Optic Riser 525-11 provides a reliable 0.50 mount height for AR platform rifles. Machined from durable aluminum with a black anodized finish, this base features 11 slots on a Picatinny rail interface with a 4.50 overall length. Engineered for secure scope and optic elevation, it ensures dependable stability and precise alignment on compatible mounting setups. 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.