An Armalite rifle (AR) is one of a series of rifles the ArmaLite company made or, more generally, a rifle based on one of its designs, such as the ArmaLite AR-15 rifle.
Eugene Stoner, Jacques Michault, Melvin Johnson, Robert Fremont, and Jim Sullivan are some of the designers credited with their development.
[1] In the United States, these rifles are generally known by their model numbers.
The AR before the model number stands for "ArmaLite Rifle".
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