MPN: APRH100439 / APRH100440


  • High Pressure Tested (HPT) and Magnetic Particle Inspection (MPI)
  • Made from Mil-Spec standards Chrome Moly Vanadium Steel
  • QPQ corrosion resistant finish
  • Button rifling for accuracy
  • Precision and accuracy lightweight AR barrel
  • Uses a 0.625 gas block

*A barrel that is shorter than 16" is only for use on a pistol configuration firearm or a NFA registered Short-Barreled Rifle (SBR). All NFA laws apply!


  • Caliber: 5.56 NATO
  • Gas Seat: 0.625"
  • Profile: Pencil
  • Twist Rate: 1:7 Twist
  • Material: 4150 Chrome Moly Vanadium Steel
  • M4 Feed Ramps: Yes
  • Muzzle Thread Pattern: 1/2"-28
  • Finish: QPQ Corrosion Resistant
  • Weight:
    • Aero 14.7" CMV Pencil Barrel (Mid-Length): 1 lb. 6 oz.
    • Aero 16" CMV Pencil Barrel (Mid-Length): 1 lb. 7 oz.


  • AR-15


Every AR build is as individual as the armorer who puts it together. You choose every part of a rifle when you build it from the ground up. That means you have a lot of choices to make, each one can potentially make or break the finished weapon. Your choice of the barrel can easily sway the direction of the entire build. If you’re looking for a lightweight AR barrel to complete a lightweight build, you will be hard to find a better than Aero Precision’s 5.56 AR15 Pencil Barrel.

Choose Your Length

If you’re looking to finish a mid-length build, choose Aero Precision’s 16-inch pencil barrel. If you’re leaning toward a short-barreled rifle, opt for the 14.7-inch version of this quality lightweight AR barrel. Either way, you’ll receive the same great quality that Aero Precision delivers in every item they offer to their customers.

Quality Assurance and American Craftsmanship

Each Aero Precision AR15 pencil barrel is both Magnetic Particle Inspected and High Pressure tested. That means you can feel secure in your decision to use one in your next build because they’re ready for a long, trouble free service life. These barrels are made from excellent 4150 chrome moly vanadium and given a QPQ finish that’s meant to stand up against anything you dish out and stay looking good, even in conditions where lesser finishes would succumb to the effects of corrosion. These barrels are ready to mount and come with pre-threaded muzzles, ready to accept the muzzle device of your choice. Please note that the profile of these barrels requires .625 inner diameter gas blocks.

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