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Customer Reviews
Helpful Positive Review
Pro series upper by Jonny0727, Verified Owner, August 8, 2024
Got this at a really good price feom optics planet. This pro series is every bit as good as my daniel defense and BCM. Bought to build what we call a NJ OTHER firearm. The fit,finish and accuracy is spot on. I actually like this better than my daniel...
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2/2 found this helpful
Most Recent Reviews
aero M4E1 PRO by arlo, Verified Owner, October 19, 2024
This is my first aero product, and i could not be happier. This upper is gorgeous!! The barrel on this particular model is CHF nitride coated. The newest pro models are CHF crome lined. I had to do a lot of digging but eventually got the low down...
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Read All 2 Reviews

Product Discontinued by Manufacturer

Aero Precision M4E1 Threaded PRO 12.5in 5.56 w/ATLAS R-ONE Handguard Complete Upper Receiver with Flash Hider has been discontinued by Aero Precision and is no longer available. Our product experts have helped us select these available replacements below.You can also explore other items in the Gun Parts, AR 15 Parts, Rifle Parts, AR15 Upper Receivers yourself to try and find the perfect replacement for you!

ATTENTION! We currently do not ship this product to AK, CA, HI, IL, NY, WA, P.O. Boxes, and U.S. Territories. Please see our policies for more information.

Product Info for Aero Precision M4E1 Threaded PRO 12.5in 5.56 w/ATLAS R-ONE Handguard Complete Upper Receiver with Flash Hider

The PRO Upper Receiver Group built around our PRO 5.56 Cold Hammer Forged Barrel that is paired with our PRO 5.56 BCG. Included ATLAS R-ONE Handguard, BREACH Charging Handle, and VG6 Delta muzzle device round this assembly out into a premium turnkey solution for your next build.image

Cold hammer forging differs from other common barrel manufacturing processes. Rather than drilling a blank and using cutters, buttons, and reamers to machine the chamber and rifling into the barrel, a cold hammer forged barrel is made by forming the barrel around a mandrel that has the rifling inclusions precision ground into it. This process is referred to as cold hammer forging because the process is done at room temperature and the metal is not heated.

Features of Aero Precision M4E1 Threaded PRO 12.5in 5.56 w/ATLAS R-ONE Handguard Complete Upper Receiver with Flash Hider

  • 12.5in PRO 5.56 Cold Hammer Forged Barrel
  • PRO 5.56 Bolt Carrier Group
  • M4E1 Threaded Upper Receiver
  • ATLAS R-ONE Handguard
  • VG6 Delta Flash Hider
  • Mid-Length Gas System
  • AR15 BREACH Ambi Charging Handle w/ Large Lever - Black

Package Contents:

  • Aero Precision M4E1 Threaded PRO 12.5in 5.56 w/ATLAS R-ONE Handguard Complete Upper Receiver with Flash Hider

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Related Products to Aero Precision M4E1 Threaded PRO 12.5in 5.56 w/ATLAS R-ONE Handguard Complete Upper Receiver with Flash Hider

Aero Precision M4E1 Threaded PRO 12.5in 5.56 w/ATLAS R-ONE Handguard Complete Upper Receiver with Flash Hider Unavailable & Discontinued Models

List of Unorderable Models

  • Aero Precision Complete Upper Receiver, M4E1 Threaded PRO, 5.56, 12.5in Barrel, Gov Profile, Mid-Length Gas System, 1-7 Twist, 1/2 x 28 Thread, ATLAS R-ONE Handguard, VG6 Delta Flash Hider, Anodized, Black, APUG700703M103-1 , MPN: APUG700703M103-1 , UPC: 840014620258 , Code: 29D-UFH-AEPM412-APUG700703M103-1
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