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An AR-15–style rifle is a lightweight semi-automatic rifle based on or similar to the Colt AR-15 design. The Colt model removed the selective fire feature of its predecessor, the original ArmaLite AR-15, itself a scaled-down derivative of the AR-10 design by Eugene Stoner. It is closely related to the military M16 rifle .
ArmaLite, or Armalite, is an American small arms engineering company, formed in the early 1950s, in Hollywood, California.Many of its products, as conceived by chief designer Eugene Stoner, relied on unique foam-filled fiberglass butt/stock furniture, and a composite barrel using a steel liner inside an aluminum sleeve, including the iconic AR-15/M16 family.
The M4, and its variants, is a lightweight 5.56×45mm NATO (and .223 Remington) caliber, gas-operated, magazine-fed, air-cooled selective fire AR-15-pattern firearm. Its gas operation consists of an internal piston (often incorrectly referred to as direct impingement ), [ 55 ] a rotating bolt, and bolt carrier that reciprocates into a receiver ...
Effective firing range. 300 m. Feed system. STANAG magazines. Sights. Iron sights or various optics. The Bushmaster M4[ 2] or M4A3[ 3] is a semi-automatic or select-fire assault carbine manufactured by Bushmaster Firearms International, modeled on the AR-15. It is one of the Bushmaster XM15 line of rifles and carbines.
LWRC M6. LWRC M6A2 in a short barrel configuration with a cerakote "flat dark earth" finish, suppressor and holographic sight. The M6 is a series of carbines designed and manufactured by LWRC International. It is based on the M4 carbine, with which it shares 80% of its parts. [ 2] The 'M' model name is not a US military designation.
67.6 km/h (42.0 mph), 5.8 km/h (3.6 mph) swimming. The M113 is a fully tracked armored personnel carrier (APC) that was developed and produced by the FMC Corporation. The M113 was sent to United States Army Europe in 1961 to replace the mechanized infantry's M59 APCs. The M113 was first used in combat in April 1962 after the United States ...
MAS (motorboat) Motoscafo armato silurante (torpedo-armed motorboat), alternatively Motoscafo antisommergibili (anti-submarine motorboat) and commonly abbreviated as MAS, was a class of fast torpedo-armed vessels used by the Regia Marina (Italian Royal Navy) during World War I and World War II. Originally, "MAS" referred to motobarca armata ...
The notation ARMA(p, q) refers to the model with p autoregressive terms and q moving-average terms.This model contains the AR(p) and MA(q) models, [5]= + = + =. The general ARMA model was described in the 1951 thesis of Peter Whittle, who used mathematical analysis (Laurent series and Fourier analysis) and statistical inference.