RIFLE: AERO PRECISION MODEL M5 - RIFLE, SERIAL NUMBER US30230, BLACK (MATTE), CASE NOT INCLUDED, SEMI - AUTOMATIC, 308 WINCHESTER, 16, 2 MAGS Notes: Manufacturer: Aero Precision LLC Model: M5 (AR-10 / Large Frame AR Platform) Serial Number: US30230 Date of Manufacture: Circa 2015-Present (Contact Aero Precision with the serial number for the exact month/year) Type: RifleFinish: Black Hardcoat Anodized (Mil-A-8625 Type III Class 2) or Cerakote Action: Semi-Automatic, Direct Gas Impingement Type of Firing Mechanism: Strikerless / Hammer-Fired Frame: Forged 7075-T6 Aluminum (DPMS High Profile) Caliber: 7.62x51mm NATO / .308 Winchester Barrel Type: Chrome Moly Vanadium (CMV) or 416R Stainless Steel Barrel Contour: Government or Medium Profile Barrel Length: 16" Barrel Rifling: Button rifled, 1:10 twist rate Front Sight: None (Optics-ready flat-top Picatinny rail) Rear Sight: None (Optics-ready flat-top Picatinny rail) Safety: Manual AR-style selector switch (Left-side or Ambidextrous) Trigger: Standard Mil-Spec single-stage Grip: Magpul Pistol Grip (MOE, MOE+, or K2 variant) OAL (Overall Length): ~35" to 41" (Depending if the stock is collapsed) ACCESSORIES: Magpul Grip, Magpul Stock, Truglo 1-6x24 scope (with mount)