This is a new Leupold FX-II 2.5x28mm scope with a duplex reticle. Intermediate eye relief (IER) allows you to mount the scope ahead of the receiver. The Multicoat 4 lens system delivers a sharp, bright image with plenty of contrast, even in low light. Simple and streamlined, yet powerful and durable, this scope carries Leupold's Lifetime Warranty. It is Leupold model #58810.