Designed for short-range engagements and quick target acquisition, the responsive Wolverine FSR 1x28 is a durable red dot optic with a 2MOA dot reticle. The Wolverine???s extremely low power consumption delivers an incredible 1,000,000 hours battery life on low and 6 years continuous use on setting 6 from just a single AA battery. Rubber armored and constructed of a single piece of 6061-T6 aluminum, the Wolverine is waterproof, fogproof and shockproof. Glass is protected by a scratch resistant, anti-reflective lens coating. All Wolverines have night vision modes, making them compatible with night vision devices. The FSR has ergonomic digital switch controls, making it quick and easy to operate when seconds count. Wolverine FSRs include: a rubber lens cover, picatinny mount and riser for absolute cowitness.