The weight of an AR-15 rifle can vary significantly depending on several factors, including barrel length, furniture material (e.g., polymer versus wood), and attached accessories such as optics, grips, and stocks. A standard AR-15 with a 16-inch barrel typically weighs between 6 and 7 pounds unloaded. Adding a loaded 30-round magazine can increase the weight by approximately one pound.
Understanding the weight of a firearm is crucial for several reasons. It directly impacts maneuverability, affecting how quickly and easily the rifle can be aimed and brought to bear on a target. Weight also influences fatigue, particularly during extended periods of carrying or use. Historically, advancements in materials science have led to lighter firearms, improving soldier mobility and effectiveness in combat. For civilian owners, a lighter rifle can be more comfortable for recreational shooting, hunting, or home defense.