Magnification: 10-40x – Objective Lens: 50mm – Reticle: Illuminated Mil-Dot Red/Green – MOA Adjustment: 1/8 Click – Parallax: Adjustable – Lens Coating: Multi-Coated – Battery Life: 80-150 Hours – Color: Black Matte – Dimensions: 415x80x63mm – Weight: 31oz – Mountable on either a weaver or picatinny rail the Firefield� 10-40×50 Tactical AO Riflescope is equipped with a second-focal plane red or green Mil-Dot reticle for a variety of tactical applications. Featuring advanced precision multi-coated optics and a 50mm objective lens the 10-40×50 Tactical Riflescope offers exceptional clarity for long-distance target sighting and competition shooting. – Engineered for precision accuracy the unit features an adjustable objective lens to correct parallax and a 1/8-inch click MOA adjustment to ensure accurate shot zeroing and bullet placement. Its easy-grip open windage and elevation turrets allow the shooter to quickly fine-tune the reticle for bullet drop ensuring even greater accuracy. – Weatherproof shockproof and fog proof the 10-40×50 Tactical Riflescope is operable in temperatures between -20 degrees and 60 degrees Celsius making it a versatile tool for any environment. Weighing less than two pounds this riflescope is extremely lightweight yet capable of withstanding up to 1200 g�s of recoil. Battery life for the adjustable illumination is between 80-150 hours.