The NPZ mount comes in AK and SVD height. Both versions will mount correctly to the SVD rail but the SVD version is too low to mount to the AK. These used to be super rare and very expensive but now in 2016 they seem to be a little more common and prices have come down

目前的PSO-1瞄准镜是由俄罗斯的新西伯利亚仪器制造工厂（NPZ国家光学机器设备厂）制造，并且运送到俄罗斯军队，给SVD系列狙击步枪使用。 其设计特点是非常好的瞄准镜的内部分划，令一名狙击手迅速确定距离，并且在校正的过程中的不需要转动手轮。 瞄准镜的内部充满氮气，并且完全密封，以防止雾化等的情况导致光学装置的失效。 它备有一个瞄准镜袋子连协助携带的皮带、瞄准镜套、物镜罩、遮阳板、电源适配器、备用灯泡和电源。 其使用的温度范围为±50 ℃。 …

Like most modern PSO's made by NPZ this takes AA batteries via the standard production adapter that replaces the older type 357 battery cap. While the AA adapter can be retrofitted easily to most any PSO-1, the illumination bulb is actually 3v instead of the military 2.5v, so you will need to change bulbs if you switch to the AA adapter.

The PO 4X24-01 is the new generation of the PSO type Russian military spec optics for the SVD/Tigr rifles. It's manufactured by NPZ (Novosibirskiy Priborostroitelniy Zavod) in Russia. It has black matt finish, standard PSO type illuminated reticule (uses AA battery, not included).

PSO Series are the original optic for the SVD Dragunov rifle. The military versions are PSO-1 and the more modern PSO-1M2 briefly seen on civilian Tiger rifles that made it into the USA in about 1994. PSO's are manufactured by NPZ in Novosibirsk Russia, the oldest optics manufacturing plant in the country (since about 1904).

Genuine and original Russian NPZ PO 6×36 scope for mounting on SVD. Features 1000m rangefinder reticle. The exact same scope as supplied to Russian military. The only difference is rangefinder (1,5m vs 1,7m on military PSO). AA powered illumintion; 6x magnification; Very clear optics; Milspec indestructible construction; FOW – 4 degrees; Eye ...

Probably the BEST made in Russia low-profile adaptor designed for AK/Saiga and TIGR/SVD rifles with extended 180mm long Picatinny rail, which allows the installation of your telescopic sight or night vision scope, rather then the Russian-made POSPs. Manufactured by NPZ "Shvabe", they are also known as NPZ Alfa.

NPZ ALFA Siderail-to-Weaver adaptor Probably the BEST made in Russia low-profile adaptor designed for AK/Saiga and TIGR/SVD rifles with extended 180mm long Picatinny rail, which allows the installation of your telescopic sight or night vision scope, rather then …

PO 3-9x24 is designed to fit SVD, Tigr rifles. NPZ - Novosibirsk instrument building plant is one of the leading producers of well-known Russian optical scopes, red dot sights, night vision sights and other devices. PO 3-9x24 has RED illuminated reticle that allows to shoot prcisely even at night. It was at first designed for sniper military use.

Genuine and original Russian NPZ PO 3-9×24 variable magnification scope for mounting on SVD. Features 1000m FFP rangefinder reticle. Variable 3-9 magnification; AA powered illumintion; FFP 1000m rangefinder reticle; Very clear optics; Milspec indestructible construction; FOW 6-3 degrees; Eye releif – 71mm