Bushmaster XM-15E2S - 5.56x45mm NATO Modern Sporting Rifle The Bushmaster XM-15E2S is a semi-automatic, AR-15-style rifle chambered in 5.56x45mm NATO (.223 Rem compatible), designed for tactical applications, sporting use, and home defense. Built on the proven direct impingement gas system and modular AR platform, the XM-15E2S offers reliability, customization, and performance in a familiar and field-ready design. Constructed with 7075-T6 forged aluminum receivers and a chrome-lined barrel, the XM-15E2S is made to military specifications and offers long-term durability and corrosion resistance. The rifle typically features a 16-inch barrel, a flat-top Picatinny upper receiver for optics mounting, and A2-style flash hider and front sight post. Depending on the model variant, it may include a carbine-length handguard and collapsible six-position stock for user adjustability. Feeding from 30-round detachable magazines, the XM-15E2S delivers dependable firepower and compatibility with a wide range of AR-15 accessories and upgrades-including optics, lights, slings, and vertical grips. Specifications Model: Bushmaster XM-15E2S Caliber: 5.56x45mm NATO / .223 Remington Action: Semi-automatic, direct impingement Barrel Length: 16 inches (standard) Twist Rate: 1:9" (some models 1:7") Overall Length: Approx. 32.5-36 inches (with adjustable stock) Capacity: 30+1 rounds (standard STANAG magazines) Upper/Lower Receivers: Forged 7075-T6 aluminum Barrel: Chrome-lined, 4140 steel Sights: A2 front sight post, flat-top rail (optics ready) Stock: 6-position collapsible Weight: Approx. 6.5 - 7.2 lbs (unloaded, variant dependent) Finish: Hard coat anodized black Unique Feature: Mil-spec build with chrome-lined barrel and modular AR-15 compatibility The Bushmaster XM-15E2S delivers rugged reliability, modular adaptability, and battlefield-proven design in a civilian-legal semi-automatic package. Whether you're shooting at the range, training, or preparing for defense, this rifle offers a trusted AR platform ready for any mission.