Product Description The Aero Precision AR-15 Complete Upper in Flat Dark Earth (FDE) is a precision-engineered assembly built for reliability, accuracy, and versatility. Featuring a 16-inch 5.56x45mm carbine barrel with a pinned Front Sight Base (FSB), this upper delivers consistent performance whether at the range or in the field. The standard AR-15 upper receiver is finished in FDE, complemented by a Magpul MOE SL Mid-Length Handguard in matching FDE that offers M-LOK compatibility for accessory customization. A mid-length gas system promotes smoother cycling and reduced felt recoil, while the standard A2 flash hider controls muzzle flash effectively. Note: this complete upper does NOT include a Bolt Carrier Group (BCG) or Charging Handle. Product Highlights Standard AR-15 Upper Receiver in FDE: Mil-spec forged upper receiver finished in flat dark earth for a durable, attractive build. 16-Inch 5.56x45mm Barrel with Pinned FSB: 1:7 twist rate carbine barrel with a pinned front sight base for reliable accuracy and solid sight alignment. Magpul MOE SL Mid-Length Handguard in FDE: Lightweight, low-profile handguard with M-LOK slots for mounting lights, grips, and other accessories. Mid-Length Gas System: Provides smoother cycling, improved reliability, and reduced wear on internal components compared to carbine-length systems. Standard A2 Flash Hider: Effectively reduces visible muzzle flash for improved shooting comfort and situational awareness. Specs Brand: Aero Precision MPN: APAR502506M65 UPC: 840014604524 Caliber: 5.56x45mm / .223 Remington Firearm Fit: AR-15 Barrel Length:16 inches Barrel Twist Rate: 1:7 Gas System: Mid-Length Gas Block Type: Pinned Front Sight Base (FSB) Upper Receiver: Standard AR-15 Upper Receiver - FDE Handguard: Magpul MOE SL Mid-Length - FDE (M-LOK Compatible) Muzzle Device: Standard A2 Flash Hider Finish: Flat Dark Earth (FDE) / Black BCG / Charging Handle Included: No Country of Manufacture: United States Condition: New Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer. ]]>