Aero Precision AR15 16″ Barrel 5.56 Complete Upper Receiver with Pinned FSB Features: Aero Precision’s roots are deeply tied to aerospace, and our drive for clean, perfect engineering and machining stems from that. When you’re building something that will fly in the air, there is no margin for error. We take that same approach in the firearms industry. Not every manufacturer will have razor thin tolerance levels. Not every manufacturer will personally oversee the development, design and machining of every part that comes off the line. We’re not every manufacturer. Aero Precision AR15 16″ Barrel 5.56 Complete Upper Receiver with Pinned FSB Specifications: Finish: Anodized Fabric/Material: 4150 Chrome Moly Vanadium Caliber: 5.56x45mm NATO Barrel Length: 16 in Barrel Profile: Government Gas Block Journal Size-Diameter: .750 in Barrel Twist Rate: 1-7 Gun Rail: Picatinny Muzzle Device: A2 Flash Hider Gun Model: AR-15 Weight: 69.76 oz Upper: Standard AR15 Upper Receiver Barrel: 16in 5.56 CMV Mid-Length Barrel w/ Pinned FSB Handguard: M4 Style Handguard Gas System: Mid-Length Gas System Muzzle Device: Standard A2 Flash Hider More Information Barrel Length 16 Caliber 5.56 Capacity 0 Condition New in Box Finish Per Color Black Manufacturer Aero Precision Model AR15 Complete Upper Receiver Type Uppers UPC 815421022308
