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The telescopic sight proprietary mount is adjustable for tension on the SVD rifle's side rail scope mount. This side rail is a type of dovetail rail known as the Warsaw Pact rail, which has cut-out portions to reduce weight and allow easier installation. The side rail mount is an offset mounting that positions the PSO-1 telescopic sight axis to ...
The iron sights can be used with or without the standard-issue optical sight in place. This is possible because the scope mount does not block the area between the front and rear sights. The SVD was originally issued with a detachable PSO-1 optical sight (now PSO-1M2) which mounts to a Warsaw Pact rail on the left side of the receiver. [16]
An example could be to mount a scope with a 1-inch (25.4 mm) tube in a 30 mm mount using a plastic insert. There are also special ring mounts in the market with circularly shaped ring inserts made to provide stress free mounting without lapping, with Burris Signature Rings and Sako Optilock Rings as two well-known examples.
Similar rails can also be found on rifles such as the Dragunov sniper rifle (SVD), the PSL rifle, the PKM as well as some AK series assault rifles from 1954 onwards. Since 1992 the side rail mount has become standard on all AK rifles. [citation needed] The SVD and the AK rifles use slightly different dovetail mounts. [7]
The scope base is the attachment interface on the rifle's receiver, onto which the scope rings or scope mount are fixed. Early telescopic sights almost all have the rings that are fastened directly into tapped screw holes on the receiver, hence having no additional scope base other than the receiver top itself.
[6] [7] This optical sight is similar to the PSO-1 4×24 sight used on the Russian SVD rifle and the Romanian I.O.R. LPS 4×6° TIP2 4×24 sight used on the PSL rifle. The ON-M76 elevation turret features bullet drop compensation (BDC) in 50 m (55 yd) increments for engaging point and area targets at ranges from 100 to 1,200 m (109 to 1,312 yd).
Shortly afterward the LPS scope was technically revised to simplify the maintenance and construction of the scope. The PSL rifle is typically issued with a 4×24 optical sight called LPS 4×6° TIP2 ( Lunetă Puṣcă Semiautomată Tip 2 , or "Scope, Semi-Automatic Rifle, Type #2") which is a simplified version of the Russian PSO-1 telescopic ...
NATO Accessory Rail (STANAG 4694) The NATO Accessory Rail (NAR), defined by NATO Standardization Agreement (STANAG) 4694, is a rail interface system standard for mounting accessory equipment such as telescopic sights, tactical lights, laser aiming modules, night vision devices, reflex sights, foregrips, bipods and bayonets to small arms such as rifles and pistols.