AirsoftGF reviews the Firefield Impact Mini Reflex Sight (in Portuguese). This optic is Ip55 weatherproof and shockproof with an adjustable illuminated 5-moa red-dot reticle. Its body is made of 6061-T6 aluminum and abd the lens is scratch-resistant, anti-reflective, antireflective-red coated glass. It is compatible with S&W, Glock and MOS.