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  2. List of the United States Army fire control and sighting ...

    en.wikipedia.org/wiki/List_of_the_United_States...

    This is a list of United States Army fire control, and sighting material by supply catalog designation, or Standard Nomenclature List (SNL) group "F". The United States Army Ordnance Corps Supply Catalog used an alpha-numeric nomenclature system from about the mid-1920s to about 1958.

  3. Sight (device) - Wikipedia

    en.wikipedia.org/wiki/Sight_(device)

    Mark III free gun reflector sight mk 9 variant. Another type of optical sight is the reflector (or "reflex") sight, a generally non-magnifying optical device that allows the user to look through a glass element and see a reflection of an illuminated aiming point or some other image superimposed on the field of view. [7]

  4. Osborne Fire Finder - Wikipedia

    en.wikipedia.org/wiki/Osborne_Fire_Finder

    Two sighting apertures are mounted above the map on opposite sides of the ring and slide around the arc. A USFS Fire Lookout using an Osborne Firefinder while on duty at Vetter Mountain, California. The device is used by moving the sights until the observer can peek through the nearer sighting hole and view the cross hairs in the further sight ...

  5. Picatinny rail - Wikipedia

    en.wikipedia.org/wiki/Picatinny_rail

    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]

  6. Telescopic sight - Wikipedia

    en.wikipedia.org/wiki/Telescopic_sight

    Telescopic sight fitted with scope rings on a Picatinny/MIL-STD-1913 rail mounted above the receiver of a sniper rifle. Design difference in grabber interfaces between the Picatinny rail and the new NATO Accessory Rail. The scope mount itself can be used as the interface for attaching other accessories.

  7. SUSAT - Wikipedia

    en.wikipedia.org/wiki/SUSAT

    The Sight Unit Small Arms, Trilux, or SUSAT, is a 4× telescopic sight, with tritium-powered illumination utilised at dusk or dawn. The full name of the current model is the SUSAT L9A1 . The sight is not designed as a sniper sight, but is rather intended to be mounted on a variety of rifles and to be used by all infantrymen.

  8. Iron sights - Wikipedia

    en.wikipedia.org/wiki/Iron_sights

    The most common is a rear sight that adjusts in both directions, though military rifles often have a tangent sight in the rear, which a slider on the rear sight has pre-calibrated elevation adjustments for different ranges. With tangent sights, the rear sight is often used to adjust the elevation, and the front the windage.

  9. Helmet-mounted display - Wikipedia

    en.wikipedia.org/wiki/Helmet-mounted_display

    The Integrated Helmet and Display Sight System (IHADSS) 30 mm M230 chain gun turret on a Boeing AH-64 Apache being aimed with a helmet-mounted sight A helmet-mounted display (HMD) is a headworn device that uses displays and optics to project imagery and/or symbology to the eyes.