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Upper Receiver Assembly
Upper Receiver Assembly
Upper Receiver Assembly
Upper Receiver Assembly
Upper Receiver Assembly
Upper Receiver Assembly
Upper Receiver Assembly
Upper Receiver Assembly
Upper Receiver Assembly
Upper Receiver Assembly
None
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BRAVO COMPANY - Upper Receiver Assembly

14 Reviews
Upper Receiver Assembly
Brownells #
100014626
MFR #
BCM4-UR-M4
UPC
855877004442
$129.00
Coupon Code
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Specifications
Color:
Black
Receiver Style:
Complete
Finish:
Matte
Cartridge:
223 Remington
Make Model Fit:
AR-15.Universal
Restriction
Restricted Part:
Yes
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What is the BRAVO COMPANY - Upper Receiver Assembly?

Forged aluminum flattop receiver includes fully-assembled forward assist and ejection port cover and accepts barrels with M4 barrel extensions. All final dimensions machined to correct mil-spec tolerances to readily accept standard AR-15 parts to help you complete an upper receiver. Laser-etched T-marks on Picatinny rail enable easy removal and re-mounting of optics, sights, and other accessories in the correct position. Interior has dry film lubrication to help reduce wear. Inside Diameter for barrel extension slightly undersized for a tighter fit to the barrel and a more accurate rifle. Please use a hair dryer to warm up threaded bore of receiver if barrel extension is too tight.


SPECS: 7075 T6 aluminum, hardcoat anodized, matte black. .250" (6.3mm) pivot/takedown pin holes.


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AR-15/M4 FLATTOP UPPER RECEIVER ASSEMBLY REVIEWS

4.4
14 Reviews
5 Stars
86%
4 Stars
0%
3 Stars
0%
2 Stars
0%
1 Stars
14%
Reviews Summary
Customers praise the AR-15/M4 Flattop Upper Receiver Assembly for its solid build quality, precision fit, and effective installation process with a heat gun. Many reviews express satisfaction with its performance and value, although a few mentioned difficulties with barrel fitting. Overall, buyers feel it’s a highly recommended choice for serious builds.
What Reviewers Are Saying
Product Quality
85%
The majority of reviewers highlight the exceptional quality and craftsmanship of the upper receiver, noting its tight fit, excellent finish, and thermal fit design that enhances accuracy. Many assert that this is a dependable choice for serious firearm builders, with some stating it as their go-to brand.
Ease of Installation
70%
Multiple reviews point out that using a heat gun for barrel installation is straightforward and produces reliable results. Reviewers appreciate that the meticulous fit contributes to overall performance, though some express frustration with the perceived difficulty of the installation process.
Value for Money
65%
Customers frequently mention that the upper receiver provides excellent value for its price, balancing quality and affordability effectively. Users often feel they are getting high-end features without the premium cost, making it a popular choice for budget-minded builds.
Customer Guidance
40%
Some reviews indicate a need for better understanding or guidance for novice builders, particularly regarding installation. A few critics mention that those unfamiliar with AR assembly or the product's specifications may struggle, suggesting the importance of thorough instructions or educational resources.
Fit and Compatibility Issues
30%
While most reviewers are satisfied with the fit, a minority note issues with barrel seating, particularly with certain brands. This has led to some confusion, underscoring that customers should be informed about the tight fit and necessary techniques for successful installation.
5
BMC Upper
Great product and great service. Works as advertised.
by MICHAEL ARCHIBEQUE on May 30, 2024
Verified Purchase
Was this review helpful? 0
5
Excellent upper from BCM
Fit and finish is perfect, T-Marks are clear, inside coated with dry lube. As far as markings go, my upper is marked "BCM4" above the gas tube hole, the side is marked with a 5-point star where the forge mark would usually be. I ended up installing a Brownells M4 SOCOM profile barrel- must use a heat gun to install the barrel, as it should be. High quality upper all around.
by Serge on March 30, 2024
Verified Purchase
Was this review helpful? 2
5
Solid upper, high quality
What makes this upper so good: 1) Thermal fit - use a heat gun (not a torch), takes about 2 minutes to warm it up enough to slip the barrel in. Super easy, rock solid 2) Dry film lubricated inside as milspec uppers should be 3) T marks on the reciever 4) Forward assist is pinned as milspec uppers should be. Pressed on forward assists are unfortunately too common. 5) Machine work and finish is excellent Overall a high quality upper for a reasonable price. Highly recommend.
by Jhon on January 29, 2024
Verified Purchase
Was this review helpful? 3
5
Good stuff!
This is my first time using a bravo company upper and I'm really impressed with the quality of workmanship and fit and finish of the upper. Yeah you've got to heat up the front of the receiver to install the barrel, not a big deal to do with a good heat gun and the results are great! I do believe that this will be my go to upper from now on. I will certainly use it again!
by Big dan on December 28, 2019
Was this review helpful? 2
5
Guality
This is the second BCM upper I have used. The fit and finish are top shelf quality. I really like the interference fit of the barrel and yes its designed that way and for a good reason. I have put together many AR style weapons over the years and have found that when a high quality upper is used the barrell sits centerline of the receiver and allows the sights or optic to be set up in a more centered manner. It has been my observation that when you move an optic from one rifle to another and it stay within a few MOAs of each other the job was done correctly. Buy high quality parts, take your time, and always read the manufacturer's paperwork (multiple times) . Assemble using good tools and your labor and money spent will be well worth it.
by Will on December 09, 2019
Was this review helpful? 2
View All 14 Reviews
Customer Questions
20 Questions