Bushnell AR TRS-25 HiRise 1 x 25mm MOA Red Dot Laser Sight

The most rugged, reliable partners you&';ll find when speed and accuracy are needed in a sight for your tactical firearm.1x 25mm Field of View (Ft @ 100yds): Unlimited Weight: 6.3 oz Length: 2.4" Eye Relief: Unlimited 3 MOA Red Dot Multi-coated optics Amber-Bright high contrast lens coating 100% waterproof/fogproof/shockproof construction CR2032 battery