Aero Precision 16″ Complete AR15 Magpul SL FSB Mid-Length Upper – .223/5.56



Aero Precision 16″ Complete AR15 Magpul SL FSB Mid-Length Upper – .223/5.56

This complete upper is an excellent addition to any AR15 custom build. It features a standard AR15 Upper Receiver and a 16″ .223/5.56 Barrel with a Pinned Front Sight Base (FSB). The Magpul MOE SL Handguard provides a comfortable and ergonomic grip, while the mid-length gas system ensures reliable operation. This upper is topped off with the A2 “Bird-Cage” Flash Hider.

Barrel and Gas System

The 16″ 5.56 Mid-Length Barrel with Pinned FSB is a high-quality component designed for accuracy and reliability. The mid-length gas system provides a softer recoil impulse than a carbine-length gas system, making it easier to stay on target during rapid fire.


The Magpul MOE SL Handguard is made of high-impact polymer with internal heatshields for heat mitigation after long strings of fire. The handguard is also compatible with MOE and MLOK accessories such as rail sections, foregrips, light mounts, and more.

Please note that this complete upper DOES NOT include a Bolt Carrier Group (BCG) and Charging Handle.

Aero Precision’s Excellence Guarantee

Aero Precision is a company that prides itself on its engineering and machining expertise. With roots in the aerospace industry, they bring a level of precision and attention to detail that is unmatched in the firearms industry. Every component they produce is held to the highest quality and performance standards.

Investing in an Aero Precision upper is an intelligent choice for anyone who wants a reliable and accurate AR15 build.


  • Brand: Aero Precision
  • Model: AR15 Magpul SL FSP Mid-Length Upper
  • Caliber: .223/5.56
  • Barrel Length: 16 in
  • Thread Pitch: 1/2×28
  • Twist: 1:7
  • Color: Black and Flat Dark Earth
  • Material: 7075-T6 Aluminum and 4150 Chrome Moly Vanadium
  • Finish: QPQ corrosion-resistant finish
  • Gas System: Mid-Length
  • Weight: 4.41 lbs

Additional information


Black, Flat Dark Earth

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