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Aero Precision M4E1 8in .300 CMV Barrel Complete Upper Assembly with Flash Hider Up to 19% Off Plus Blazin' Deal w/ Free S&H — 3 models
When I opened the box,
My jaw dropped with perfection this finish is insanely perfect flowless
Butttttt their is one catch this thing is insanely over gased shame on areo for not putting an adjustable gas block ,
I despenced 30 roun...
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Looks great and feels great, quality is right there with BCM. No cons that I can think of, just an awesome upper for the price and in general. And Optics Planet customer service can't be beat. Looking forward to the range!
Product: This is a solid upper. Looks and feels great (as long as you like a little more girth in your handguards). Fit and operation with multiple lowers has been flawless. Aero has great products at a good price point. Overall, it’s simply a great ...
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Great looking upper , light weight fitted to my ruger 556 pistol lower nice and tight . Accurate at 50 yds super and subs shot great .. suppresor Q.D adapter worked but is close to hand guard. 6 hrs after receiving 200 pound boar hog down . Extrem...
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I believe this was already addressed k. The questions section but the product photo of the 8” black enhanced upper is NOT accurate. The enhanced handguard on the 8” black enhanced upper is appropriately approximately one inch shorter (7”)than the bar...
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1/1 found this helpful
Most Recent Reviews
AP Quad Rail
by
lab,
Verified Owner,
August 7, 2025
Flawless upper. My only complaint is a personal preference… I got the 8in so with the way I hold my rifle the quad rail feels very chunky because of the picatinny. Besides this, I love it. Just gonna replace the rail.
Prices have been cut drastically on this product as part of a special offer. These prices are so low that there's no double-dipping with coupons or any additional discounts, but you'll still get the best deal out there. This offer won't last long, so don't miss out!
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3 Models Available
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Finish: Cerakote Color: Flat Dark Earth Additional Features: EQ-7 Handguard Gen 2
Code: 29D-UFH-APM4ECUPB-APAR600212Q1
MPN: APAR640212Q1
UPC: 815421022636
Blazin' Deal
List: $545.00Save 19%
$440.99
Finish: Anodized Color: Black Additional Features: EM-7 Handguard Gen 2
Code: 29D-UFH-APM4ECUPB-APAR600211M1
MPN: APAR640211M1
UPC: 815421022438
Blazin' Deal
List: $595.00Save 19%
$481.49
Finish: Cerakote Color: Flat Dark Earth Additional Features: EM-7 Handguard Gen 2
Help support American manufacturing! Marked models of this product have gone through rigorous review and been certified by the manufacturer as Made in the USA.
Product Info for Aero Precision M4E1 8in .300 CMV Barrel Complete Upper Assembly with Flash Hider
These Aero Precision M4E1 Complete Uppers with 8in .300 Blackout Barrels are equipped with Chrome Moly Vanadium barrels. Along with solid fit and finish, these AR15 Upper Receivers from Aero Precision come with Gen 2 Enhanced free-float handguards with Picatinny top rail and a choice of rail types on the other 3 faces. These Aero Precision M4E1 Complete Uppers have been MPI and HP tested and are compatible with standard AR15/M4 components. Get more power, precision and accuracy when you upgrade to one of these Aero Precision M4E1 8in .300 Blackout Complete Upper Assemblies.
Specifications for Aero Precision M4E1 8in .300 CMV Barrel Complete Upper Assembly with Flash Hider:
Manufacturer:
Aero Precision
Caliber:
.300 AAC Blackout
Barrel Length:
8 in
Muzzle Device:
A2 Flash Hider
Gun Model:
AR-15
Condition:
New
Fabric/Material:
416R Stainless Steel
Handguard Length:
7 in
Handguard Style:
Quad Rail
Magazine Included:
No
Country of Origin:
USA
Features of Aero Precision M4E1 8in .300 CMV Barrel Complete Upper Assembly with Flash Hider:
Forged from 7075 T6 aluminum.
Precision machined to M4E1 specs.
M4 feedramp extension.
Comes assembled, with port door and forward assist installed.
.300 Blackout for more power - compatible with standard AR15/M16 components.
Handguard mounting platform is forged into the receiver.
Works with Aero Precision handguards but also fits most BAR-system handguards.
Gen 2 Enhanced Handguard Features 1-piece free float design, built in anti-rotation tabs, scalloped rails, continuous top rail, 1.78-inch inside diameter fits most muzzle devices and 1.5-inch suppressors, compatible with low profile gas blocks, QD sling sockets at the 3, 6 and 9 o'clock positions, additional milling along flats to aid with gripping and add visual appeal, new profile for continuous Picatinny top rail.
Barrel made of 4150 Chrome Moly Vanadium with QPQ corrosion resistant finish.
Low Profile Gas Block and Pistol Length Gas Tube.
HP and MPI Tested.
Barrel nut and wrench are included.
Does not include BCG or charging handle.
Muzzle brake that comes with this complete upper receiver is NOT pinned nor welded to this barrel. Per the National Firearms Act, the muzzle brake MUST be pinned and welded to achieve the necessary 16 inches as defined by the ATF for a rifle build.
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Made in USA
