Weaver rail mount
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A Weaver rail mount (Picatinny type) is a system to connect telescopic sights and other accessories to rifles, shotguns, pistols, archery bows, etc.
The slot spacing in the Weaver rail is 3.8 mm, while the slot spacing on the Picatinny rail is 5 mm. Therefore, although they look similar, devices built for the two are not entirely interchangeable. While it is often possible to attach a Weaver mount device to a Picatinny rail, the dimension mismatch in the slot is large enough that a robust attachment is impossible for devices that click into the slots. Devices fastened to the rail by side screws or grips are usually interchangeable.
The Weaver rail can be used to mount the following on a firearm:
The Weaver mount is a development of William Ralph Weaver (1905 – 8 November 1975) and W.R. Weaver Co., founded in 1930 [1]. Now known as Weaver Optics, it has been a subsidiary of Meade Instruments Corporation since 2002.
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