The AR-15 is a lightweight, semi-automatic rifle platform known for its modularity, accuracy, and versatility in calibers like .223 Remington and 5.56 NATO. It works with AR-15 upper and lower receivers, barrels, bolt carrier groups, charging handles, handguards, buffer tubes, stocks, magazines, gas systems, and lower parts kits. The AR-15’s components are highly interchangeable, making it ideal for custom builds, upgrades, and repairs for hunting, target shooting, home defense, and tactical applications.
