The Nitro 505 XERO with speed of 505 feet-per-second and and the Garmin XERO X11 Rangefining Scope, the Nitro 505 is the fastest crossbow on the market and the most accurate long-range crossbow ever built by TenPoint. The 3.5x Garmin Xero X1i Rangefinding Scope Crossbow and features a built-in laser range finders that generate a single, precise illuminated aim point automatically adjusted for both distance and angle allowing you to see your target, unobstructed by reticle pattern, and leading to greater accuracy, easy cocking and more ethical shots.