Aero Precision M4E1 5.56 Rifle Barrel Complete Upper Receiver

Price Save Up to 17% from $409.99 to $348.49

This Upper Receiver Handguard Combo now includes our Gen 2 Enhanced Handguard! Key features include the addition of quick disconnect sling sockets, enhanced milling design for grip and visual appeal and a new profile for the picatinny top rail. Anti-Rotation Tabs. Feed Ramp Extension. Scalloped Rails. Continuous Top Rail.


RATING
94.25 /100
  • Design

    Excellent

  • Performance

    Excellent

  • Value for money

    Excellent

  • Feature

    Excellent

Specifications for Aero Precision M4E1 5.56 Rifle Barrel Complete Upper Receiver:

Caliber: 5.56x45mm NATO
Gun Model: AR-15

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  • PROS
  • Lightweight, Solid, Fitment, Finish, Function
  • Very good quality for the price.
  • Great price great quality
  • Price, quality of construction
  • CONS
  • Basic Muzzle Device
#Aero Precision

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Comments
Gustave - Add Reply

I bought this upper to pair with an Aero M4E1 pistol lower for my first AR pistol build. This upper is really unique in that it offers a really strong platform for a free-float barrel build since the handguard mounts directly to the upper itself, completely avoiding any interaction with the barrel. The uninterrupted top 1913 rail is really cool in my opinion and makes for a cleaner looking top rail that is incredibly straight the entire length of the rail. The handguard feels extremely solid, is comfortable to grip, and has generous openings on top to help dissipate heat away from the handguard and, ultimately, your hand. As far as how it shoots, I can say I was pleasantly surprised at how well it shot. This is my first experience with a 10.5" 5.56 build but I can't imagine it gets much better than this at this price point. VERY smooth, VERY pleasant to shoot. It recoils much less than I imagined it would and even with the basic A2 flash hider it's extremely predictable and controllable. I bought the M-LOK version but I can't imagine you'd have any issues with either of the other two versions. The fitment between this and my M4E1 was better than that of my 16" AR from another manufacturer (that was more expensive) and basically has zero wobble. I've already ordered a different muzzle device to replace the standard A2 flash hider but at the price I paid, I simply can't complain about that. It'll go in the parts bin for a spare. I do like that Aero leaves out the BC... Read More...

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Herminio - Add Reply

Just built ar 15 pistol, married this upper with aero lower. The quality is awesome and surface match is spot on. The tolerances are great and fit like a glove. Tested gun today, it ate reloads, steal and brass, both 223 and 556. Have binary set up and the gun gave zero issues. Have feeling this company will be on par with the big boys very very soon.

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Leonardo - Add Reply

I recently ordered a complete upper assembly made by Aero precision. I initially ordered the wrong upper receiver and was concerned that I would be stuck with it! After one simple phone call,the gentleman on the other end of the line who was a fantastic customer service rep took care of all of my concerns. Shortly there after,I received my product at my front door in perfect condition! It was a painless purchase to say the least. We all are like children no matter the age when we see a box at the front door with our name on it! Thanks Optics Planet. Job well done.

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Bennie - Add Reply

If you are building a AR style pistol, this is the perfect upper. 7.5 inch barrels are accurate to about 200 meters but 10.5 inch uppers are accurate to about 300 meters, so I went with this upper, very good quality for the money. Fits most lowers with no wiggle unlike some cheaper uppers. Ar15 pistols are great for home defence or close quarter combat or use in a vehicle.

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Denis - Add Reply

This is great quality for ANY price. The rail is solid, the A2 front sight is pinned for durability, the barrel material is top quality, the anodizing is darker and nicer than lesser quality manufacturers that come out gray to light gray...Aero Precision is my new go to manufacturer.

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Santa - Add Reply

The upper worked right out of the box. It has a carbine length gas system so it’s not over gases. The rail is a bit bigger around but not overly large. All in all I would say that this is a good deal the accuracy is decent.

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Ernest - Add Reply

Great quality and a perfect match to an Aero Precision Lower or any lower. Fit and finish is exceptional and is perfect for an SBR, MK18 clone, or a high quality pistol build. Great options for rail systems give you the “real estate” you need for accessories to get the job done.

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Darren - Add Reply

Definitely was nice being able to get this for my first build, I hear upper assembly is the most tedious part & thanks to this I won’t have to find out! It matched up perfectly with the m4 lower & has plenty of mounting space, went from the front all the way to the magwell on the bottom so you can get perfect placement with all of your tactical add-ons

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Jed - Add Reply

I purchased the 10.5 M-Lok for a new build that I was doing and I am not disappointed that I bought it. At first I wished the rail was a little slimmer, but as time has gone on I’ve started to appreciate the larger diameter. It’s super solid and would recommend to anyone.

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Jarvis - Add Reply

Fit and finish is outstanding. No play in the handguard what so ever. Pleasant to shoot. I would buy again. Aero percision really thought out the handgaurd. Mlok slots are adequate and well spaced. Scalloped top section provides picatiny rail while allowing more cooling of barrel. Muzzle device aids in flash suppression and recoil control, not that there is much from 5.56 but the recoil impulse is pleasant out of a 10.5in barrel.

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Kristofer - Add Reply

This upper is very well put together. Very happy with the look and feel. Took it to the range and tested it out. Very accurate, smooth, and handles great. The SPR barrel helps with tight groups. Shooting 68gr match ammo and could stack rounds in the bulls. I highly recommend and very satisfied with optics planet.

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Casimer - Add Reply

Bought this for an aero lower, fits great. Works as it's supposed to, no unnecessary fluff. I would recommend it paired with an Aero lower if you want the same finish quality, but it fits fine on my other lowers as well.

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Brian - Add Reply

This is my third Aero Precision upper. I keep buying Aero because the quality is top notch! Beautiful finish and craftsmanship! When I paired this 10.5" upper with the an Aero Precision lower it made a great AR pistol. I would honestly expect to pay a little more! Aero continues to put out excellent products!

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Amir - Add Reply

I got this upper after some time waiting but was worth it. Replaced the flash hider before I put the upper on. Left everything else alone and I've got no complaints at all! Great product and a great price!

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