An AR15 rifle stock is the buttstock component designed for AR-15 rifles, providing shoulder support, stability, and comfort while shooting. Available in fixed or adjustable styles, it attaches to the buffer tube at the rear of the lower receiver. The AR15 rifle stock works with AR-15 lower receivers, buffer tubes (rifle or carbine length), buffer assemblies, stocks, and upper receivers. It’s essential for customizing fit, handling, and shooting comfort in hunting, target, tactical, or precision AR-15 builds.