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  2. Telescopic sight - Wikipedia

    en.wikipedia.org/wiki/Telescopic_sight

    A Swift model 687M variable power rifle telescopic sight with parallax compensation (the ring around the objective lens is used for making parallax adjustments). Telescopic sights are classified in terms of the optical magnification (i.e. "power") and the objective lens diameter. For example, "10×50" would denote a fixed magnification factor ...

  3. Advanced Combat Optical Gunsight - Wikipedia

    en.wikipedia.org/wiki/Advanced_Combat_Optical...

    The United States Army, Air Force and Marine Corps field the Trijicon TA31RCO ACOG, a 4× magnification model with a 32mm objective lens (4×32), with specially designed ballistic compensating reticles that are fiber optic & tritium illuminated, for the M4 carbine and M16A4 rifle. [23] This sight is designated the M150 Rifle Combat Optic in ...

  4. Dovetail rail - Wikipedia

    en.wikipedia.org/wiki/Dovetail_rail

    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. Since 1992 the ...

  5. Accuracy International Arctic Warfare - Wikipedia

    en.wikipedia.org/wiki/Accuracy_International...

    The rifles have features that improve performance in extremely cold conditions (which gave the rifle its name) without impairing operation in less extreme conditions. Arctic Warfare rifles are generally fitted with a Schmidt & Bender Police & Military II (PM II) telescopic sight with fixed or variable magnification. Variable telescopic sights ...

  6. Gyro gunsight - Wikipedia

    en.wikipedia.org/wiki/Gyro_gunsight

    The pilot/gunner had to look into the narrow field folded prismatic telescopic sight at the top of the device, a drawback corrected in the later Mark II. After tests with two experimental gyro gunsights which had begun in 1939, the first production gyro gunsight was the British Mark I Gyro Sight, developed at Farnborough in 1941.

  7. BSA Meteor Air Rifle - Wikipedia

    en.wikipedia.org/wiki/BSA_Meteor_Air_Rifle

    The BSA Meteor is a series of break barrel spring powered rifle first made in Birmingham, UK, in 1959 by The Birmingham Small Arms Company and the first BSA air rifle engineered to fit a telescopic sight. [1] It is one of the worlds best selling air weapons with over 2 million sold worldwide. Marketed as an introductory rifle for plinking ...

  8. Diopter sight - Wikipedia

    en.wikipedia.org/wiki/Diopter_sight

    Target shooting diopter of a 10 metre air rifle with a mounted semi-transparent occluder for the non-aiming eye. A diopter sight is an aperture sight component used to assist the aiming of ranged weapons, mainly firearms, airguns, and crossbows. Diopters function to precisely align the shooter's eye with the front sight and the target, while ...

  9. Sight (device) - Wikipedia

    en.wikipedia.org/wiki/Sight_(device)

    Sights can be a simple set or system of physical markers that serve as visual references for directly aligning the user's line of sight with the target (such as iron sights on firearms), [3] or optical instruments that provide an optically enhanced—often magnified—target image aligned in the same focus with an aiming point (e.g. telescopic ...