The AR15 has been around since the 1950s.
- “AR” stands for ArmaLite Rifle, not assault rifle
- Eugene Stoner designed it at ArmaLite in the late 1950s
- Colt bought the design in 1959
- The military adopted it as the M16 in the 1960s
- Colt sold a semi-auto AR15 to civilians starting in the 1960s
- When the patents ran out, other companies started making them. Now it is the most popular rifle in America


