LUCID 4X Prismatic Weapons Optic with P7 Reticle Auto brightness sensor - so the operator does not have to take a hand off the weapon to manipulate the reticle brightness when going from a bright environment to a darker one Available kill flash filter Mounting - a robust Picatinny rail mount is built in for secure and rock solid mounting to most weapons platforms 100 percent waterproof, shockproof and fog proof - because you never know what Environmental conditions you will be in when you need to rely on your weapon System Available flash filter