Showing results for AR-15. Search instead for MAR-1.

AR-15

American

[ey-ahr-fif-teen] / ˈeɪˈɑrˈfɪfˈtin /

Trademark.

a lightweight, gas-operated, magazine-fed rifle with a caliber of .223 inches, used for semiautomatic fire.

Etymology

Origin of AR-15

First recorded in 1960–65; shortening of ArmaLite Rifle, not of assault rifle ( def. ), as commonly thought

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The firearms include one AR-15 rifle and two 9mm semiautomatic pistols.

From Los Angeles Times • Oct. 16, 2024

Officials accuse him of allowing his son to possess an AR-15 style rifle.

From BBC • Sep. 8, 2024

The Post won three Pulitzer Prizes last month, including one in national reporting for a vivid series on the impact of the AR-15 rifle.

From Seattle Times • Jun. 2, 2024

I would not have walked into a coffee shop with an AR-15 and expected the reactions I got for walking in with a musket, for one thing.

From Slate • May 8, 2024

The gun rack, set between two of the eight windows, held a Remington shotgun, a Colt AR-15 assault rifle, a tear-gas gun, and many rounds of ammunition.

From "Newjack: Guarding Sing Sing" by Ted Conover

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023