Optical sights Smersh 3-9×40 Duplex d25.4mm optical sight Smersh rifle scope 3-9×40 Duplex d25.4mm Art. manufacturer: RX2206 Reticle: DUPLEX F Magnification (x): 3-9x Lens diameter (mm): 40 The diameter of the Central tube (mm): 25.4 Field of view (m at 100m): 13.61-36.7 Length of sight: 310 Post Views: 337