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The Picatinny rail has a similar profile to the Weaver, but the recoil groove width of the Picatinny rail is 0.206 in (5.23 mm) versus 0.180 in (4.57 mm) of the Weaver rail/mount, and by contrast with the Weaver, the spacing of the Picatinny recoil groove centers is consistent, at 0.394 in (10.01 mm). [5]
The rifle uses Russian designed 7.62×39mm cartridges which are fed from a detachable, single column 5 round box magazine, and is drilled and tapped for weaver scope ring bases, which can be used to mount various types of scopes. The JW-103 has no sights while the JW-105 has front and rear sights.
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 most commonly encountered mounting systems are the 3 ⁄ 8 inch (9.5 mm) and the 11 mm dovetail rails (sometimes called "tip-off mounts") commonly found on rimfires and air guns, the Weaver rails, the mil-spec MIL-STD-1913 Picatinny rail (STANAG 2324), and the NATO Accessory Rail (STANAG 4694). Ruger uses a proprietary scope base system ...
The sighting system uses the multipurpose Weaver rail mount rather than the Picatinny rail for affixing sighting systems which can be purchased separately. This same scope mounting system is used on the HK21E , HK23E , and G41 (discontinued) series.
Sights: supplied with adjustable rear sights, hooded ramp foresight, drilled and tapped for scope mounts (Weaver mounts for Remington Model 700 fit the CF-2) The rifle was finished in blued steel barrel and action with gloss black paint on the alloy floorplate and trigger guard, the stocks were of wood.
The SR-25 enhanced match rifle utilizes the newer URX II Picatinny-Weaver rail system, rather than the older Mk 11 free-floating RAS, on the top of the receiver to accept different scope mounts or a carrying handle with iron sights (front sight mounted on the rail located on the forward end of the non-modular handguard). [4]
The only significant difference between the MIL-STD-1913 rail and the similar Weaver rail are the size and shapes of the slots. Whereas the earlier Weaver rail is modified from a low, wide dovetail rail and has rounded slots, the 1913 rail has a more pronounced angular section and square-bottomed slots. This means that an accessory designed for ...