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Vinony

AR-15

noun

  1. .223 caliber gas-operated semiautomatic rifle
L1555759 on Wikidata ↗

Wiktionary

noun

Etymology: Initialism of ArmaLite Rifle, which was named after the company that originally designed the weapon.

  1. A lightweight, semi-automatic rifle, based on the original design of the ArmaLite AR-15.

    “Not long after it started selling M-16s to the military, Colt began marketing the semi-automatic AR-15 to civilians.”

    “An AR-15 once again made an appearance at a mass shooting, this time at a Parkland, Fla., high school on Wednesday. The suspect in the shooting, 19-year-old Nikolas Cruz, purchased the semiautomatic rifle about a year ago, according to a law enforcement official.”