The Firefield Barrage 2.5-10x 40mm rifles scope is ideal for mid to long-range operation. Fully multi-coated lenses along with the red or green illuminated reticle make working in low light situations a breeze. Constructed from aluminum and nitrogen filled for waterproof, fog proof, and shockproof performance. Laser Specs:Wavelength:Green- 532nmRed- 632-650nmLaser Output: 5mW, class IIIADot Size: 1" at 100 yardsBattery Type:Green- CR2Red- AG13 Includes:Integral sunshadeWeaver-style mountBatteriesFeaturesRed or green illuminated Mil-Dot reticle1/4 MOA precision windage and elevation adjustments100 Hours of battery life for the scope; 16 hours of battery life for the laser100 to 500 yard .223 55gr bullet drop compensation