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C79 optical sight
The C79 Optical sight is a small arms telescopic sight of 3.4×28 magnification. A tritium illuminated reticle provides for normal and low-light conditions sighting. The sight itself is nitrogen-purged to prevent fogging and is covered with an armoured coating of rubber. It can be mounted to a variety of rifles and light machine guns using the M1913 Picatinny rail mounting system or the similar "Diemaco" rail system found on small arms produced by Diemaco/Colt Canada. It is manufactured by Elcan and can be found on military service weapons around the world. Its Elcan product name is the SpecterOS3.4x, although in Canadian service, it is typically referred to as the C79 or the C79A2. Similar rifle sights are the Sight Unit Small Arms, Trilux (SUSAT) and the Advanced Combat Optical Gunsight (ACOG).
==Use==
The Elcan C79 is the primary sighting system for the small arms of the Canadian Forces and is mounted on the Diemaco C7 and C7A2 service rifles, the C8 Carbine family, as well as the C9A1 Light Machine Gun. It is also used in the armies of Denmark, the Royal Netherlands Army and Netherlands Marine Corps and Norway.
In Canadian service, all C7A1 and -A2 rifles come equipped with a C79 sight as standard. The C7A1 uses a C79 sight, which is easily distinguished by its matte black rubber overcoating. After reviewing feedback from the soldiers who used the sight, Elcan produced the ''fourth generation mount'' C79, known as the C79A2, and is mounted onto the C7A2 rifle, as well as the C8A3 carbines. The C79A2 sight is a component of the C7A2 mid-life update program of the Canadian Forces' inventory of C7A1 rifle systems. The older rifles and sights are meant to be exchanged 1:1 and brought to the -A2 standard.
In Dutch service it is used on the Diemaco C7 (regular infantry), C7A1 (airmobile infantry) and C8, FN minimi and FN MAG series of firearms.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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