AR-15 M4 STRIPPED UPPER RECEIVER BLACK

AR-15 M4 STRIPPED UPPER RECEIVER BLACK Reviews & Ratings

Sometimes you want the latest, updated, tweaked component, and sometimes you need a basic stripped receiver where the production effort goes into quality, rather than bells and whistles. The Brownells M4 Stripped Upper Receiver is that component - the perfect starting point for many an AR-15 build. Starting with a 7075 T6 aluminum forging, our stripped M4 flattop upper is precision machined to final dimensions that make it compatible with the multitude of available "mil-spec" AR-15 components. It has a matte black, Type III hardcoat anodized finish, mirroring the military requirement.

  • Machined from 7075-T6 aluminum forging
  • Matte black Type III hardcoat anodized finish
  • Mil-spec dimensions for maximum parts compatibility
  • Standard .250" dia. pivot/takedown pin holes

Inside our upper features M4 feed ramps to aid in chambering during high rates of fire. Please note: this is a truly stripped upper receiver, with NO forward assist or ejection port cover installed, so you can truly customize every aspect of your rifle. The Brownells M4 Stripped Upper Receiver is a top-tier upper receiver, at a great price.

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5 Stars
80%
4 Stars
20%
3 Stars
0%
2 Stars
0%
1 Stars
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Reviews Summary
The Brownells AR-15 M4 Stripped Upper Receiver impresses users with its great fit and finish, making it a solid choice for builds, especially at its competitive price. While some reviews mention minor issues with fitment and finish, overall satisfaction remains high, with many recommending it for both budget and custom builds.
What Reviewers Are Saying
Fit and Finish
80%
Many reviewers praise the overall fit and finish of the upper receiver, noting it provides a perfect fit with various lowers, including Aero Precision and S&W. Although a few reported slight gaps or imperfections, the consensus is that it meets or exceeds expectations for build quality.
Value for Money
75%
A significant number of reviewers highlight the exceptional value this upper represents given its low price compared to competitors. Customers appreciate that it offers quality similar to higher-priced options, making it an attractive choice for budget-conscious builders.
Compatibility
70%
Reviewers frequently discuss the upper's compatibility with various lower receivers and parts kits, including those from Aero and Anderson. Most find it fits well with minimal issues, enhancing its appeal for custom AR builds.
Customer Experience
60%
Customers often mention positive experiences with Brownells' customer service and shipping. While some noted minor issues with packaging that resulted in cosmetic blemishes, the overall feedback on service quality remains favorable.
Minor Fitment Issues
40%
Some reviewers encountered minor fitment problems, such as tight tolerances and minor gaps, specifically when pairing with certain lowers or components. However, these issues are generally seen as manageable and do not significantly detract from the overall quality.
5
Great Deal Good Quality
To be honest over the last decade I can't tell you how many of these I've purchased. I usually build about 7 AR a year for my personal collection but that's not including custom builds I do for friends and family and other people. I would highly recommend this product definitely a great deal for the price no concerns.
5
Great product
Finished an AR build with this upper, the upper that came with the parts kit had very poor fit. I received this one in the mail yesterday and installed it today, the fit and finish was perfect. Im very pleased with this upper and the price was right as well.
5
Basic Upper No Frills
A basic upper. Customers wanting a basic build for a training & home SD weapon have a good start with this upper plus value. MilSpec on hand parts did fit & function. Barrel recess is tight but no problem. No T marks. Was tight on a SAA lower at the take-down & pivot pin holes. Nothing else exciting but it will give a basic start for those who need a AR type weapon to keep the foxes out of the chicken coop.
5
Brownells M4 stripped upper receiver
I purchased two of these, one for myself and one as a gift. As with all products offered by Brownells both were of exceptional quality and value. I personally like that I can add all of my own components during my builds. If youre on the fence about one of these uppers pull the trigger you wont be disappointed.
5
High quality upper.
I just completed a build using this upper. It was up to specification and I encountered no problems in completing my barreled assembly. Tested the rifle and encountered no problems of any kind while firing. Good product at a good price. Will buy another soon.
5
Good quality and great price
I've used the Brownells upper for a dozen or so builds and find it to be a good quality upper at a very good price. I've had no issues with fitment using upper components from Luthar, DPMS, and Colt. I've also had no issues with barrel fitment from Ballistic Advantage, Colt, FN, Satern and Krieger. Several of the builds have well over 10,000 rounds and run great. I've also used them from everything from 10.3" 5.56 and 300 BLK to 18" MK12 and 20" National Match builds. I've also ordered several as 'blems' and have never noticed why they are labeled as such. Though most of my builds are destined for high round counts and I don't overly concern myself with perfect finishes.
5
Excellent Upper
Used this upper for a 10.3 300 AAC pistol build and I'm very happy I did. I was lucky enough to be able to try it on Aero, PSA, Ruger and Colt lowers and the fit was very good on all of them. I lapped these uppers by hand and was pleased to see how true they both where. Honestly I don't think I really needed to bother. Working slowly by the time I started to cut through the anodizing they were done. It was more like I was confirming how square they were instead of squaring them up. I literally couldn't have been happier with the 2 I received.
5
Outstanding value
I am building AR-15s number 2 and 3 using Brownell parts. On my first AR-15, I used mostly Brownells parts (except those items out of stock at the time), and propriatory parts sold by Brownells. I ordered and used an Anderson Manufacturing lower and liked it so much I ordered 2 more. I had just received 2 Brownell uppers and am extremely happy with the fit and function. I see no reason to pay more (sometimes much more) for parts that Brownells offers under their own name. I have convinced other shooters that Brownells is the place to buy AR build parts that run every much as well as big name expensive guns. This are for SHTF scenarios.
5
Good quality upper.
Was looking at Aero uppers and stumbled across this Brownells stripped upper. It was the best price on an upper and I trust the Brownells name so I ordered it and an aero parts kit totaling around 57ish dollars for an upper receiver. Everything installed in this kit has fit together great, see the picture below showing feedramps on this upper with a .223 wylde barrel. The barrel fit was VERY tight I was able to start it by hand but ended up having to lightly tap it the rest of the way forward with a rubber mallet. Long story short the uppers quality seems good, the barrel fit nice and tight in it, I'm happy with it.
5
BEST FORGED UPPER I HAVE FOUND!
Tope of the line! The Brownells upper is a "Aero" type upper for less! Top of the line and better than any other i have owned! If you're looking for a tough forged Mil-Spec upper then look no further!!