PISTOL: BUSHMASTER FIREARMS MODEL XM15-E2S PISTOL, SERIAL NUMBER L035410, SEMI - AUTOMATIC, 5.56 NATO, BLACK (MATTE), CASE NOT INCLUDED, 12 Notes: Manufacturer: Bushmaster Firearms International (B.F.I.) Model: XM15-E2S Serial: L035410 Date of Manufacture: Pre-September 1994 (The "L" prefix with low serial sequences under L063001 denotes early-to-mid 1990s production by LAR for Bushmaster) Type: Rifle (Semi-Automatic Carbine) Finish: Matte Black Anodized (Parkerized barrel) Action: Direct Gas Impingement Type of Firing mechanism: Internal Hammer / Striker Fired Receiver (Frame): Forged 7075-T6 Aircraft-Grade Aluminum Upper & Lower Caliber: 5.56x45mm NATO / .223 Remington Barrel type: Chrome-lined 4150 alloy steel Barrel contour: M4 Profile Barrel Length: 16" standard Barrel rifling: 1:9" Twist Rate Front sight: Fixed A2-style post sight Rear sight: A2 Dual-aperture adjustable Safety: Standard manual selector switch (Left side) Trigger: Standard Mil-Spec single-stage trigger Grip: A2 standard polymer pistol grip OAL (Overall Length): 27.75" ACCESSORIES: Holosun weapon light (side-mounted)