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1PN58 () is the GRAU index for a Soviet designed passive night scope for a range of Soviet designed small arms and grenade launchers. ''1PN'' is the GRAU index of night vision devices, where PN stands for ''Nochnoy Pritsel'' () meaning night sight. It is also called NSPUM (). The scope weighs 2 kg and measures 458 mm × 186 mm × 99 mm (length × height × width). It is attached onto a matching side rail on the weapon after which a lever on the scope is pressed to hold it in place. The 1PN58 comes in a metal container with room for extra batteries, battery charger and the other accessories, weighing 7.3 kg in total. ==Optics== The scope gathers light into a refractor which can be protected with an aperture cover. The center of the cover has a circular aperture with dark glass allowing the scope to be used in light conditions that would otherwise saturate the light intensifier. For zeroing the sight the left side of the scope has two perpendicular knobs, of which the elevation knob has a detachable scale. The scope comes with seven different, detachable elevation scales, one for each of the supported weapons. The eyepiece has a detachable soft rubber eyecup. The scope has a magnification of 3.5. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「1PN58」の詳細全文を読む スポンサード リンク
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