variants or AR15 rifle
plural -s
: a . 223 caliber gas-operated semiautomatic rifle that is essentially a civilian version of the M16

Word History


from Armalite, the manufacturer

First Known Use

1963, in the meaning defined above

Time Traveler
The first known use of AR15 was in 1963

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Dictionary Entries Near AR15

Cite this Entry

“AR15.” Dictionary, Merriam-Webster, Accessed 24 Apr. 2024.

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