Oscypek talks about the Firefield Impact Mini Reflex Sight why it is a good fit for use in airsoft CQB games and more. The Firefield Impact Mini Reflex Sight Kit is a compact, durable optic with a high-performance red-dot reticle. It's ideal for quick target acquisition in close quarters, and it's shockproof, weatherproof, and scratch-resistant. The sight easily mounts on Weaver and Picatinny rails and operates up to 40 hours on a single battery.