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Among scopes for rail mounts, the 22.5-degree V-shaped Zeiss rail is the most prevalent standard. It was introduced in 1990. After the patent expired in 2008, compatible scopes have been offered from manufacturers such as Blaser, [1] Leica, Minox, Meopta, Nikon, [2] Noblex (formerly Docter [3]), Schmidt & Bender [4] and Steiner. [5]
The mount was an innovative approach to holding zero when removing and reinstalling a scope. FN offered the rifle with a 4×24mm scope sourced from Karl Kaps in Germany. For unknown reasons FN had switched from the excellent OIP (Optique et Instruments de Precision — Optical and Precision Instruments) scopes to selling the German made scope.
A SIG Sauer SSG 3000 bolt action rifle fitted with a Zeiss Victory Diavari 3-12x56 telescopic sight with Zeiss rail.. Zeiss inner rail, [1] generally simply referred to as Zeiss rail, is a ringless scope sight mounting system introduced by Zeiss in 1990 as an alternative to traditional ring mounts. [2]
The 30mm DS30M Mark 2 is a ship-protection system made by MSI-Defence Systems consisting of a 30mm Mark 44 Bushmaster II cannon on an automated mount. It was designed to defend Royal Navy frigates from fast inshore attack craft armed with short-range missiles, rocket-propelled grenades , machine guns , or explosives.
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 Stoner 63A1 was tested by the US Army and USMC as the XM22 assault rifle, XM23 carbine and XM207 machine gun. Various improvements was the Dutch pattern side folding stock, quick release bipod that folded under the handguard, an improved removable magazine floor plate, a quick release scope mount.
The WA 2000 had a quick-detachable scope mount with a weight of 0.96 kg (2.1 lb). [4] The rifle did not have iron sights. The most commonly used optical sight was a Schmidt & Bender 2.5–10× telescopic sight. [citation needed] Without scope the rifle has an unloaded weight of 6.95 kg (15.3 lb) and a loaded weight of 7.35 kg (16.2 lb). [4]
Early separation systems using Marman clamps used explosive bolts for release. These have problems of unpredictability, the need to contain debris and difficulties in testing them. [ 5 ] A more recent approach uses a screw thread.
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