Aero Precision AR15 20" 5.56 Complete Upper with Pinned FSB & A2 Handguard

Aero Precision, AR15 Complete Upper, 223 Remington/556NATO, 20" Barrel, 1:7 Twist, A2 Detachable Carry Handle and A2 Front Sight Block, Rifle Length Gas System, Anodized Finish, Black, Does Not Include BCG or Charging Handle (APAR505611)  Elevate your AR-15 rifle with the Aero Precision AR15 Complete Upper Assembly. Crafted with precision engineering and durable materials, this upper assembly is designed to deliver reliable performance and exceptional accuracy. Features: Upper Receiver: Standard M4 Upper Receiver for compatibility with a wide range of AR-15 lowers Barrel: 20" 5.56 NATO Barrel with Rifle Length Gas System, featuring a 1:7 Twist Rate for enhanced stabilization of heavier projectiles Barrel Material: Constructed from 4150 Chrome Moly Vanadium with a QPQ corrosion-resistant finish for long-lasting durability Sights: Includes A2 Detachable Carry Handle and A2 Front Sight Block with Bayonet Lug for traditional rifle aesthetics and reliable aiming Handguard: A2 Style Handgu