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A thermographic weapon sight, thermal imagery scope or thermal weapon sight is a sighting device combining a compact thermographic camera and an aiming reticle. [1] They can be mounted on a variety of small arms as well as some heavier weapons. [2] As with regular ultraviolet sensors, thermal weapon sights can operate in total darkness.
Both AN/PAS-13Bs have programmable reticles, allowing the user to match the reticle to the weapon system the sight will be mounted on. Some reticles included in the sight include those designed for the M16 rifle, M4 carbine, M60 machine gun, M240 machine gun, M249, M2 machine gun, MK19, MK47, M24 sniper weapon system, and the GAU-21. The sight ...
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.
US Marine with a M240G machine gun in the Persian Gulf, 2004. Initial engineering development of the AN/PVS-4 was undertaken by Optic Electronic Corporation of Dallas, Texas, in 1975 as a replacement for the Vietnam War era AN/PVS-2 Starlight Scope. In 1976, the first production contract was awarded for 47,074 units, and first deployed in 1978. [1]
The first ACOG model, known as the TA01, was released in 1987. [3] [4] An example was tested on the Stoner 93 in the early 1990s by the Royal Thai Armed Forces. [5]In 1995, United States Special Operations Command selected the 4×32 TA01 as the official scope for the M4 carbine and purchased 12,000 units from Trijicon. [6]
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 ...
A potential disadvantage of glass reticles is that the surface of the glass reflects some light (about 4% per surface on uncoated glass [6]) lessening transmission through the scope, although this light loss is near zero if the glass is multicoated (coating being the norm for all modern high quality optical products).
The new .50 BMG gun and improved scope could employ "fire-and-forget" technologies including "fin-stabilized projectiles, spin-stabilized projectiles, internal and/or external aero-actuation control methods, projectile guidance technologies, tamper proofing, small stable power supplies, and advanced sighting, optical resolution and clarity ...