If you're looking for a Low Power Variable Optic (LPVO), you need to check out the SIG SAUER Tango-MSR FFP 1-10x26mm Rifle Scope 34mm Tube. Like other First Focal Plane (FFP) AR15 Rifle Scopes, the reticle enlarges and shrinks according to your magnification, as it is placed after the magnifier in the optic. With up to 10x magnification, you can use the SIG SAUER Tango-MSR at close-, medium-, and even long-range engagements, making it an excellent all-around rifle scope. It has a 0.5 MOA adjustment click value, providing extreme precision in dialing in your shots. Plus, the 11 brightness settings let you tune the reticle to your environment so that you can see it clearly regardless of the time of day. Specifications for SIG SAUER Tango-MSR FFP 1-10x26mm Rifle Scope 34mm Tube First Focal Plane: Manufacturer: SIG SAUER Objective Lens Diameter: 26 mm Magnification: 1 - 10 x Reticle: BDC Tube Diameter: 34 mm Reticle Focal Plane: First Focal Plane (FFP) Exit Pupil: 2.6 - 7.6 mm Illumination Color: Red Finish: Hardcoat Anodized Field of View, Linear: 12 - 120 ft at 100 yds Eye Relief: 82.5 - 87.5 mm Diopter Adjustment Range: -2.5 - 2.5 dpt Weight: 21.9 oz Adjustment Click Value: 0.5 MOA Length: 11 in Adjustment Type: MOA Illumination Type: LED Battery Type: Lithium Metal, CR2032 Lens Material: Glass Optical Coating: Spectracoat Brightness Settings: 11 Weather Resistance: Yes Water Resistance Level: IPX-7 Shockproof: Yes Fogproof: Yes Battery Quantity: 1 Magnification Type: Variable W/E Travel at 100 Yds: 100 MOA Attachment/Mount Type: Cantilever Mount Features of SIG SAUER Tango-MSR FFP 1-10x26mm Tactical Rifle Scope 34mm Tube First Focal Plane High Performance 10x optical system with low dispersion glass Integrated thread in throw leaver for quick magnification changes Illuminated MSR BDC-10 reticle with 11x brightness levels Dependable waterproof, shockproof, and fog-proof performance Package Contents: SIG SAUER Tango-MSR FFP 1-10x26mm Tactical Rifle Scope 34mm Tube First Focal Plane Lay Flat Flip-Back Lens Covers ALPHA-MSR 1 Piece Aluminum Cantilever Mount