Includes: 1-6x24 SFP LPVO Scope, CR2032A Battery (Preinstalled) Reticle: Illuminated BDC Reticle Lens Coating: Full Multi-Layer Materials: 6061 Aircraft Grade Aluminum Compatibility: Rifles with Picatinny Rails Scope Range: Close to Mid Range, 300+ Yards Magnification: 1-6x Objective Diameter: 24 mm Rail Mount Torgue: 30 in/lbs Scope Ring Torgue: 18 in/lbs Tube Diameter: 30 mm Eye Relief: 4 - 4.5 in Weight: 16 oz Length: 11.2 in Color: Black Fog & Water Resistance? Yes (Nitrogen Sealed) Warranty: 1 Year Warranty Our S line of SFP Scopes are built to deliver premium high performance optics at the most affordable prices on the market. The SFP1624 includes a Second Focal Plane Rangefinder reticle. A magnification range from 1-6x capable of Close to Mid range targeting at distances over 300 yards. Etched black reticle is visible when off or can be illuminated in red or green for low light environments. SFP versus FFP Scopes In SFP (Second Focal Plane) scopes, the size of the reticle is fixed regardless of magnification. In FFP (First Focal Plane) scopes, the size of the reticle grows or shrinks in relation to magnification adjustment. Range and distance information from the reticle remain constant in an FFP scope regardless of magnification - so a 1 MOA hashmark is equal to 1 MOA at all magnification levels. Tasks such as range estimation, hold over correction, and bullet drop adjustment can therefore be performed much more easily at all magnification levels using an FFP scope.