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A relatively new type of telescopic sight, called prismatic telescopic sight, prismatic sight or "prism scope", replaces the image-erecting relay lenses of a traditional telescope with a roof prism design commonly found in compact binoculars, monoculars and spotting scopes.
Leupold & Stevens, Inc. is an American manufacturer of telescopic sights, red dot sights, binoculars, rangefinders, spotting scopes, and eyewear located in Beaverton, Oregon, United States. The company, started in 1907, is on its fifth generation of family ownership. [2] [3]
A compact variant with a 380 mm (15 in) barrel is also available, designated as the CTAR-21. A designated marksman rifle variant with a folding under-barrel bipod and Trijicon ACOG 4× magnification sight was also made but later phased out in favour for the Tavor TAR Flattop.
The Ruger LCR is a compact revolver built by Sturm, Ruger & Co. and announced in January 2009. LCR stands for "Lightweight Compact Revolver". It incorporates several novel features such as a polymer grip and trigger housing, [4] monolithic receiver, and constant force trigger.
The SIG MCX Raptor is a short-barreled rifle variant intended to serve as a carbine, featuring an 8-inch (200 mm) barrel and a Picatinny rail tail interface for attaching either a compact buttstock or a folding PCB (pistol contour brace). It is available in .277 SIG FURY, 6.5 Creedmoor and 7.62×51mm NATO. [12]
It was developed and manufactured in the late 2010s by Kalashnikov Concern, based on the Yevgeny Dragunov MA Compact Rifle and unveiled at the Russian Army Expo 2017 alongside the AM-17. The weapon is intended for use as a close quarters weapon, primarily for special units of the Russian Interior Ministry and the Russian Army to replace the AS ...
These imported mass-produced scopes included such niceties as metal tubes and more refined hardware, and are still very affordable. [19] Since the 1990s, manufactured Dobsonians using the truss tube design have become increasingly popular. The first commercial truss Dobsonian was released into the market by Obsession Telescopes in 1989. [21]
Light path in a Cassegrain reflecting telescope. The Cassegrain reflector is a combination of a primary concave mirror and a secondary convex mirror, often used in optical telescopes and radio antennas, the main characteristic being that the optical path folds back onto itself, relative to the optical system's primary mirror entrance aperture.