Athlon Optics Helos BTR 1-4.5x24mm LPVO 30mm Tube Rifle Scope SFP ATSR3 IRMOA Reticle Black. 5x24 Second Focal Plane Rifle Scope. To hold up against all odds these AR15 Rifle Scopes by Athlon Optics are waterproof fogproof and shockproof - ready to use in wet conditions and on your powerful weapon without breaking. The 6061 T6 aluminum construction of the Athlon Optics Helos BTR ATSR3 SFP IR MOA Rifle Scope provides a rugged lightweight platform that provides premium housing for the fully multicoated glass within. An illuminated reticle provides a bright aiming point in any lighting conditions and the glass-etched reticle ensures you can use this scope even if you lose power. With a precision zero stop system combined with a revolution lock you can easily lock down and dial back to zero so that you don't have to keep second guessing yourself. Enhance your accuracy and overall shooting experience by using this Athlon Optics Helos BTR 1-4.5x24 Illuminated Rifle Scope. Specifications for Athlon Optics Helos BTR GEN II 1-4.5x24mm LPVO 30mm Tube Rifle Scope SFP: Manufacturer: Athlon Optics Objective Lens Diameter: 24 mm Magnification: 1 - 4.5 x Reticle: MOA Tube Diameter: 30 mm Reticle Focal Plane: Second Focal Plane (SFP) Exit Pupil: 5.2 - 12.2 mm Illumination Color: Red Finish: Matte Field of View Linear: 100 - 22 ft at 100 yds Eye Relief: 3.2 in Color: Black Weight: 22.9 - 1.43125 oz Adjustment Click Value: 0.25 MOA Length: 9.5 in Adjustment Type: MOA Parallax: 10 yds to infinity Illumination Type: LED Battery Type: CR2032 Fabric/Material: Aluminium Adjustment Range: 23 MOA Focus Range: 10 yds to infinity Lens Material: Glass Optical Coating: Fully Multicoated Weather Resistance: Yes Water Resistance Level: IPX-7 Shockproof: Yes Fogproof: Yes Battery Quantity: 1 Magnification Type: Variable Condition: New W/E Travel at 100 Yds: 80 MOA Eyepiece Lens Diameter: 40.64 mm Attachment Type: Riflescope Ring Features of Athlon Optics Helos BTR GEN II 1-4.5x24mm LPVO 30mm Tube Rifle Scope SFP Argon Purged Advanced fully multi-coated XPL Coating Waterproof Revolution Lock Second Focal Plane High Precision Erector System 30mm Tubes Illuminated Glass Reticles Exposed Turrets Side Parallax Adjustment Package Contents: Athlon Optics Helos BTR GEN II 1-4.5x24mm LPVO 30mm Tube Rifle Scope SFP Athlon Optics 214101: Helos BTR 1-4.5x24mm LPVO 30mm Tube Rifle Scope SFP ATSR3 IRMOA Reticle Black