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F8 Mount, telescope, M1 (for 37mm gun carriage, M1); Telescope, M2 (for 37mm gun carriage, M1) – Parts and equipment F9 Telescope B.C. M1915, and M1915A1 F10 bore sight, (small arms, and field artillery)
An old German machinegun telescopic sight with scope rings Two Colt Python revolvers, one (above) with barrel-mounted scope A re-enacted Confederate sharpshooter aiming a Whitworth rifle with a ring-mounted scope, secured by clamping onto the gunstock A one-piece scope mount (with three 30 mm rings) on a Sako TRG-42.
A rail system mounted on top of a SIG SG 550 A dovetail rail on a rifle receiver for mounting a sight. A rail integration system (RIS; also called a rail accessory system (RAS), rail interface system, rail system, mount, base, gun rail, or simply a rail [1]) is a generic term for any standardized attachment system for mounting firearm accessories via bar-like straight brackets (i.e. "rails ...
These expert-recommended range finders from Maven, Bushnell, Nikon, and others can help you nail accurate, ethical shots.
It is similar in concept to the earlier commercial Weaver rail mount used to mount telescopic sights, but is taller and has wider slots at regular intervals along the entire length. The MIL-STD-1913 locking slot width is 0.206 in (5.23 mm). The spacing of slot centres is 0.394 in (10.01 mm) and the slot depth is 0.118 in (3.00 mm). [8]
The mount is found on the left side of the rifle receiver, with machined cutouts for reduced weight and ease of installation; an example is the PSO-1 optical sight. 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.
A telescopic sight is a refracting telescope equipped with some form of referencing pattern mounted in an optically appropriate position in the optical system to give an accurate aiming point. Telescopic sights are used on a wide range of devices including guns , surveying equipment, and even as sights on larger telescopes (called a finderscope ).
Because when using a telescopic sight, the crosshair lines geometrically resemble the X- and Y-axis of the Cartesian coordinate system where the reticle center is analogous to the origin point (i.e. coordinate [0,0]), the designated sighting-in point is known as a zero, and the act of sighting-in is therefore also called zeroing.