The Bushmaster XM15-E2S is a classic American-made AR-15 style semi-automatic rifle chambered in .223 Remington / 5.56 NATO. Produced by Bushmaster Firearms, the XM15-E2S earned a strong reputation for reliability, durability, and solid accuracy, making it one of the most recognizable commercial AR-15 platforms of the late 1990s and 2000s. This rifle features a 20-inch barrel, a forged 7075-T6 aluminum upper and lower receiver, direct impingement gas system, and typically includes an A2 fixed stock, fixed carry handle with integrated rear sight, and standard A2 front sight. The 20-inch barrel provides increased muzzle velocity and excellent accuracy compared to shorter carbine models, making it well-suited for target shooting, varmint hunting, and general sporting use. Compatible with standard AR-15 magazines and accessories, the XM15-E2S remains a popular choice among shooters who appreciate the classic full-size AR-15 configuration and the quality of the original Windham, Maine-era Bushmaster rifles.