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The 1913 rail (MIL-STD-1913 rail) is an American rail integration system designed by Richard Swan [1] that provides a mounting platform for firearm accessories. It forms part of the NATO standard STANAG 2324 rail. It was originally used for mounting of telescopic sights atop the receivers of larger caliber rifles.
The Picatinny Arsenal (/ ˈ p ɪ k ə t ɪ n i / or / ˌ p ɪ k ə ˈ t ɪ n i /) is an American military research and manufacturing facility located on 6,400 acres (2,590 ha) of land in Jefferson and Rockaway Townships in Morris County, New Jersey, United States, encompassing Picatinny Lake and Lake Denmark.
The most likely source of his design is the 1882 edition of History of the Flag of the United States of America by George Henry Preble, a flag scholar in the late 1800s. [16] Preble himself did not discuss the arrangement of the stars on the 1777 design. The book's illustrators, however, did provide a flag design for the 1777 flag.
The current design of the U.S. flag is its 27th; the design of the flag has been modified officially 26 times since 1777. The 48-star flag was in effect for 47 years until the 49-star version became official on July 4, 1959. The 50-star flag was ordered by then president Eisenhower on August 21, 1959, and was adopted in July 1960.
See also: Flags of the U.S. states and territories A 2.00 m × 1.70 m oil painting showing historical US flags. This is a list of flags in the United States describing the evolution of the flag of the United States of America, as well as other flags used within the United States, such as the flags of governmental agencies. There are also separate flags for embassies and ships. National flags ...
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]
Steam locomotives of the Chicago and North Western Railway in the roundhouse at the Chicago, Illinois rail yards, 1942. The Timeline of U.S. Railway History depends upon the definition of a railway, as follows: A means of conveyance of passengers and goods on wheeled vehicles running on rails, also known as tracks.
NATO Accessory Rail (STANAG 4694) The NATO Accessory Rail (NAR), defined by NATO Standardization Agreement (STANAG) 4694, is a rail interface system standard for mounting accessory equipment such as telescopic sights, tactical lights, laser aiming modules, night vision devices, reflex sights, foregrips, bipods and bayonets to small arms such as rifles and pistols.