Aero Precision M4E1 Threaded Complete Upper Receiver 5.56 Nato 14.5 in Barrel Government Profile 1-7 Twist 1/2x28. 56 NATO 14.5 in Barrel Government Profile 1-7 Twist 1/2x28 Thread 12 in ATLAS R-ONE M-LOK Handguard Black

Buy your Aero Precision M4E1 Threaded Complete Upper Receiver from BattleHawk Armory today!

The Aero Precision M4E1 Threaded Complete Upper Receiver is a fully assembled upper receiver package designed for AR-15 builds. It features a 14.5" government profile barrel with a 1-7 twist rate, optimized for a wide range of 5.56 NATO ammunition. The 12" ATLAS R-ONE M-LOK handguard provides a lightweight and ergonomic platform for attaching accessories and customizing the rifle to individual preferences. The M-LOK attachment system allows for easy and secure accessory integration. The black finish adds a sleek and professional look to the upper receiver while providing durability and corrosion resistance. The threaded barrel with a 1/2x28 thread pattern allows for the installation of muzzle devices or suppressors. This complete upper receiver package is designed with Aero Precision's M4E1 enhanced upper receiver, which includes a built-in picatinny rail for easy optic mounting and a more rigid and accurate platform. Whether for recreational shooting, competition, or tactical use, the Aero Precision M4E1 Threaded Complete Upper Receiver offers a reliable and customizable solution. Its high-quality construction, government profile barrel, and versatile handguard make it a suitable choice for a variety of AR-15 builds.

Includes:

• M4E1 Threaded Assembled Upper Receiver
• 12" ATLAS R-ONE M-LOK Handguard of choice
• 14.5" 5.56 Mid-Length CMV Barrel
• Low Profile Gas Block and Mid Length Gas Tube
• VG6 Epsilon 556SL (pinned and welded)
• Product comes assembled
• This complete upper does not include BCG or Charging Handle. These products may be selected as add-ons under the FINISH YOUR BUILD tab
• The muzzle brake that comes with this complete upper receiver is pinned to this barrel. Per the National Firearms Act, the muzzle brake MUST be pinned and welded to achieve the necessary 16" as defined by the ATF for a rifle build.