Search results
Results from the WOW.Com Content Network
F26 Finder range, 1-meter base, F27 Sights, rocking-bar (all types) – Parts and equipment; F28 Sight, M1901 (French) F29 Sight, M1916, for 75 mm Gun M1916 – Parts and equipment; F30 Sight, telescopic, 2.24-inch (6 Pdr.) tank gun, Mk.II (British) -Parts and equipment; F31 Sight, M1916, telescopic, 37mm gun, M1916 – Parts and equipment, 18 ...
M145 Machine Gun Optic fitted to a M240B machine gun. The M145 Machine Gun Optic is a variant of the C79 that was developed for the U.S. Army and is commonly mounted on M240 and M249 machine guns. The M145 is unusual when compared with other optical sights in use with the United States military in that ballistic compensation is in the mount ...
A 1951 USAF resolution test chart is a microscopic optical resolution test device originally defined by the U.S. Air Force MIL-STD-150A standard of 1951. The design provides numerous small target shapes exhibiting a stepped assortment of precise spatial frequency specimens.
Newer generation red dot sights were produced with lower power consumption LEDs and power saving electronics, allowing them to run for years without being turned off. In 2000, the U.S. military introduced a red dot sight into field use, the Aimpoint CompM2, designated the "M68 Close Combat Optic".
Wire reticles are the oldest type of reticles and are made out of metal wire or thread, mounted in an optically appropriate position in the telescopic sight's tube. Etched reticles are an optic element, often a glass plate, with inked patterns etched onto it, and are mounted as an integrated part of the lightpath. When backlit through the ...
Colt M4 carbine with M68 Close Combat Optic and back-up sight. The CompM2 is a battery-powered, non-magnifying red dot type of reflex sight for firearms manufactured by Aimpoint AB . It was first introduced in the U.S. Armed Forces in 2000, [ 1 ] designated as the M68 Close Combat Optic (M68 CCO; NSN : 1240-01-411-1265).
A fence-mounted perimeter intrusion detection system installed on a chain link fence. A perimeter intrusion detection system (PIDS) is a device or sensor that detects the presence of an intruder attempting to breach the physical perimeter of a property, building, or other secured area.
Notes on rangefinders, compasses and on contouring with the Scale of Horizontal Equivalents (PDF), Infantry and Cavalry School Lectures 1902-1910, Staff College Press, U.S. Army, Fort Leavenworth, Kansas, 1905, OCLC 278057724, archived from the original (PDF) on 2016-03-03 – via archive.org