The Bushnell R3 3-9x40 Rimfire DZ22 Riflescope features a Drop Zone 22 reticle optimized for rimfire ammunition. The HD Optical System ensures optimal light transmission and contrast for clear visuals. The EXO Barrier maintains lens clarity by repelling water, oil, dust, and debris. With an IPX7 waterproof rating, this scope performs reliably in wet conditions. It is nitrogen purged to prevent internal fogging.