APF M4 5.66 NATO Complete AR-15 Upper Receiver, 16" Barrel

 
4.5 out of 5 star rating (55 reviews)
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$314.99
Non-Member $349.99
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$78.75
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Item is on backorder. Estimated availability: 7/6/2021
Note: Your credit card will not be charged until the backordered item ships. Estimated availability subject to change.
    • Shipping restrictions apply to this product under some jurisdictions. Known age, state and local shipping restrictions are applied at checkout and may result in changes to an order. PLEASE NOTE: We do not accept returns of Ammunition for safety reasons. NEVER use any Ammunition unless it is specifically designed for your firearm.
    • This item cannot ship to Canada.

Key Features

  • Chambered for 5.56 NATO
  • 16" 4140 steel barrel with 1:9" twist
  • 7075-T6 forged upper
  • Carbine-length gas system
  • M4-style polymer handguard
  • Rail-height gas block
  • Forward assist and dust cover included
  • Includes BCG and charging handle
  • SATISFACTION GUARANTEE

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  • LOWEST PRICE GUARANTEE

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  • Easy Returns

The M4 Complete Upper from Alex Pro Firearms® is a superbly crafted Upper that will serve well as the foundation of your next AR build. It's built around a .5.56 NATO chamber and features a 4140 steel barrel with 1:9" twist. The 1:9" twist excels with popular and widely available 55- and 62-grain bulk rounds, so it's cheaper to own.

The M4 Upper also comes outfitted with an M4-style polymer handguard and rail-height gas block, so it accommodates flip-up sights, no problem. Forward assist and dust cover come standard, and the Upper includes a nitrided bolt carrier group and charging handle, so it's ready to pin to a lower of your choice. And best of all? It's a fantastic value. Comparable uppers of this quality currently sell for at least twice the price. So don't wait. This is your chance to get a boutique-quality AR Upper at an entry-level price.

More on Alex Pro Firearms

Alex Pro is a Minnesota company headquartered in Alexandria—just about two hours north of us here at The Guide. Having been in the machining business for over 30 years, APF manufactures the majority of their own firearm components in-house. This allows them to deliver a high-quality product at a fair price. With a passion for firearms and extensive knowledge of premier manufacturing methods, they're continually striving to build the highest quality guns on the market.

  • Chambered for 5.56 NATO
  • 16" 4140 steel barrel
  • 1:9" twist offers greater accuracy with inexpensive 55- and 62-gr. bulk rounds, as well as lighter varmint loads
  • 7075-T6 forged upper
  • Carbine-length gas system
  • M4-style polymer handguard
  • Rail-height gas block accommodates flip-up sight
  • Forward assist and dust cover included
  • Includes BCG and charging handle

Order today!

Key Specifications

  • Item Number: 709407
  • Chamber: 5.56 NATO
  • Barrel: 16" M4
  • Barrel Material: 4140 chrome moly
  • Barrel Twist: 1:9"
  • Receiver: Forged 7075-T6
  • Gas system: Carbine-length
  • Bolt carrier group: Nitrided
  • Handguard: M4-style polymer
  • Mfg. Number: UP-059
APF M4 5.66 NATO Complete AR-15 Upper Receiver, 16" Barrel
APF M4 5.66 NATO Complete AR-15 Upper Receiver, 16" Barrel
 
4.5 out of 5 star rating (55 reviews)
Buyer's Club $314.99 Non-Member $349.99