What is an AR-15 rifle?
An AR-15 is a semi-automatic or self-loading rifle that has been called "America's rifle" by the NRA with well over 15 million sold by 2019. "
Semi-automatic" means that the shooter must pull the trigger to fire each shot. The rifle then automatically reloads. An automatic weapon is one that continues to fire as long as you hold down the trigger, and is (mostly) banned in the U.S.
"AR-15s are the most commonly used rifles in marksmanship competitions, training, and home defense,"
according to the NRA. The Washington Post found that in 2023, about
1 in 20 U.S. adults owned an AR-15. The Post found that the weapon was used in at least 10 of the 17
deadliest mass shootings in America.
An AR-15 is not a specific model, but a style. It's the civilian variation of the ArmaLite AR-15, a variant of the AR-10 designed by Eugene Stoner in the 1950s, that was extremely lightweight, easy to care for and highly adaptable. ArmaLite sold the patent to Colt in the 1960s and they developed an automatic-fire version for the military called the M16. After Colt's patent ran out, other manufacturers began making their own versions.