What makes the AR-15 style rifle the weapon of choice for mass shooters?

An AR-15-style rifle is any lightweight semi-automatic rifle based on or similar to the Colt AR-15 design. The original ArmaLite AR-15, its predecessor, was a scaled-down derivative of Eugene Stoner's ArmaLite AR-10 design and featured selective fire. Tech Zoo #rifle #machine #design #technology #mechanism | Tech Zoo

6 Best 7.62×39 AR-15 Uppers & Complete Rifles

How to install an AR-15 Dust Cover | Tennessee Gun

NEW Strike Industries AR Overmolded Ultimate Dust Cover

AR-15 Dust Cover Install made simple

7 Best AR-15 Suppressors (5.56 And Multi-Cal)

15 Best AR-15 Rifles in 2024 (with Pictures and Prices) - Gun News Daily

[Review] Palmetto State Armory (PSA) AR-15 Review