+1-800-504-5897 Help Center Check Order Status
About Us Policies Reviews How To
Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC, and to all U.S. Military APO/FPO/DPO addresses.

Enjoy our FREE RETURNS

We want to ensure that making a return is as easy and hassle-free as possible! If for any reason you are not satisfied with your purchase, simply return the item within 30 days of receipt, and we'll cover the cost of return shipping. Learn more about our Return Policy.

  • Entire Store
  • ...
  • Apparel & Footwear
  • Astronomy
  • Everything Else
  • Eyewear
  • Hunting Gear
  • Lab Equipment
  • Military Gear
  • Outdoor Gear
  • Photography Equipment
  • Police, EMS & Fire
  • Shooting
  • Sport Optics
  • Sports & Hobbies
TIP
Shopping Cart

Aero Precision M4E1 16in .300 Blackout Barrel Complete Upper Receiver with Flash Hider Up to 17% Off w/ Free Shipping — 8 models

Special offer available for this product. Click here to see!
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EM-12 HG, No BCG/Charging Handle, Gen 2, Anodized Black, 16in, APAR600231M14
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EQ-12 HG, No BCG/Charging Handle, Gen 2, Anodized Black, 16in, APAR600231Q14
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EQ-12 HG, No BCG/Charging Handle, Gen 2, FDE Cerakote, 16in, APAR600232Q14
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EM-12 HG, No BCG/Charging Handle, Gen 2, FDE Cerakote, 16in, APAR600232M14
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EQ-15 HG, No BCG/Charging Handle, Gen 2, FDE Cerakote, 16in, APAR600252Q14
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EQ-15 HG, No BCG/Charging Handle, Gen 2, Anodized Black, 16in, APAR600251Q14
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EM-15 HG, No BCG/Charging Handle, Gen 2, FDE Cerakote, 16in, APAR600252M14
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EM-15 HG, No BCG/Charging Handle, Gen 2, Anodized Black, 16in, APAR600251M14
Aero Precision M4E1 16in .300 Blackout Barrel Complete Upper Receiver, Black, Flat Dark Earth
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EM-12 HG, No BCG/Charging Handle, Gen 2, Anodized Black, 16in, APAR600231M14
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EQ-12 HG, No BCG/Charging Handle, Gen 2, Anodized Black, 16in, APAR600231Q14
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EQ-12 HG, No BCG/Charging Handle, Gen 2, FDE Cerakote, 16in, APAR600232Q14
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EM-12 HG, No BCG/Charging Handle, Gen 2, FDE Cerakote, 16in, APAR600232M14
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EQ-15 HG, No BCG/Charging Handle, Gen 2, FDE Cerakote, 16in, APAR600252Q14
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EQ-15 HG, No BCG/Charging Handle, Gen 2, Anodized Black, 16in, APAR600251Q14
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EM-15 HG, No BCG/Charging Handle, Gen 2, FDE Cerakote, 16in, APAR600252M14
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EM-15 HG, No BCG/Charging Handle, Gen 2, Anodized Black, 16in, APAR600251M14
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EM-12 HG, No BCG/Charging Handle, Gen 2, Anodized Black, 16in, APAR600231M14
1 of 17 images
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EM-12 HG, No BCG/Charging Handle, Gen 2, Anodized Black, 16in, APAR600231M14
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EQ-12 HG, No BCG/Charging Handle, Gen 2, Anodized Black, 16in, APAR600231Q14
2 of 17 images
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EQ-12 HG, No BCG/Charging Handle, Gen 2, Anodized Black, 16in, APAR600231Q14
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EQ-12 HG, No BCG/Charging Handle, Gen 2, FDE Cerakote, 16in, APAR600232Q14
3 of 17 images
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EQ-12 HG, No BCG/Charging Handle, Gen 2, FDE Cerakote, 16in, APAR600232Q14
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EM-12 HG, No BCG/Charging Handle, Gen 2, FDE Cerakote, 16in, APAR600232M14
4 of 17 images
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EM-12 HG, No BCG/Charging Handle, Gen 2, FDE Cerakote, 16in, APAR600232M14
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EQ-15 HG, No BCG/Charging Handle, Gen 2, FDE Cerakote, 16in, APAR600252Q14
5 of 17 images
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EQ-15 HG, No BCG/Charging Handle, Gen 2, FDE Cerakote, 16in, APAR600252Q14
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EQ-15 HG, No BCG/Charging Handle, Gen 2, Anodized Black, 16in, APAR600251Q14
6 of 17 images
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EQ-15 HG, No BCG/Charging Handle, Gen 2, Anodized Black, 16in, APAR600251Q14
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EM-15 HG, No BCG/Charging Handle, Gen 2, FDE Cerakote, 16in, APAR600252M14
7 of 17 images
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EM-15 HG, No BCG/Charging Handle, Gen 2, FDE Cerakote, 16in, APAR600252M14
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EM-15 HG, No BCG/Charging Handle, Gen 2, Anodized Black, 16in, APAR600251M14
8 of 17 images
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EM-15 HG, No BCG/Charging Handle, Gen 2, Anodized Black, 16in, APAR600251M14
Aero Precision M4E1 16in .300 Blackout Barrel Complete Upper Receiver, Black, Flat Dark Earth
9 of 17 images
Aero Precision M4E1 16in .300 Blackout Barrel Complete Upper Receiver, Black, Flat Dark Earth
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EM-12 HG, No BCG/Charging Handle, Gen 2, Anodized Black, 16in, APAR600231M14
10 of 17 images
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EM-12 HG, No BCG/Charging Handle, Gen 2, Anodized Black, 16in, APAR600231M14
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EQ-12 HG, No BCG/Charging Handle, Gen 2, Anodized Black, 16in, APAR600231Q14
11 of 17 images
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EQ-12 HG, No BCG/Charging Handle, Gen 2, Anodized Black, 16in, APAR600231Q14
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EQ-12 HG, No BCG/Charging Handle, Gen 2, FDE Cerakote, 16in, APAR600232Q14
12 of 17 images
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EQ-12 HG, No BCG/Charging Handle, Gen 2, FDE Cerakote, 16in, APAR600232Q14
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EM-12 HG, No BCG/Charging Handle, Gen 2, FDE Cerakote, 16in, APAR600232M14
13 of 17 images
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EM-12 HG, No BCG/Charging Handle, Gen 2, FDE Cerakote, 16in, APAR600232M14
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EQ-15 HG, No BCG/Charging Handle, Gen 2, FDE Cerakote, 16in, APAR600252Q14
14 of 17 images
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EQ-15 HG, No BCG/Charging Handle, Gen 2, FDE Cerakote, 16in, APAR600252Q14
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EQ-15 HG, No BCG/Charging Handle, Gen 2, Anodized Black, 16in, APAR600251Q14
15 of 17 images
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EQ-15 HG, No BCG/Charging Handle, Gen 2, Anodized Black, 16in, APAR600251Q14
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EM-15 HG, No BCG/Charging Handle, Gen 2, FDE Cerakote, 16in, APAR600252M14
16 of 17 images
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EM-15 HG, No BCG/Charging Handle, Gen 2, FDE Cerakote, 16in, APAR600252M14
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EM-15 HG, No BCG/Charging Handle, Gen 2, Anodized Black, 16in, APAR600251M14
17 of 17 images
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EM-15 HG, No BCG/Charging Handle, Gen 2, Anodized Black, 16in, APAR600251M14

Tap Tap to Zoom

Government Export Restriction Government Export Restriction
Government Restriction Government Restriction
Questions & Answers
what size is the gas block and can an adjustable block be used? Expert Answer

The Aero Precision M4E1 16in .300 Blackout Barrel Complete Upper Receiver uses a low profile 0.750" gas block. An adjustable gas block could be used, however, a larger inside diameter handguard may be required depending on the gas block you intend to use. The internal diameter of the included handguard is 1.78".

by Ethan, Gear Expert, August 16, 2022
What would be a good compatible BCG to order with this Upper? Expert Answer

For the Aero Precision M4E1 16in .300 Blackout Barrel Complete Upper Receiver I recommend using the Aero Precision BCG at the link below.
https://www.opticsplanet.com/aero-aprh100070-5-56-bcg-nickl-boron.html

by Hunter, Gear Expert, August 10, 2022
View All Q&A You Have a Question? Ask!
Customer Reviews
Helpful Positive Review Awesome AERO 300 blackout upper M LOCK by Mike, May 19, 2019
I put together a 300 black out all Aero parts night force scope with suppressor. I am very impressed with the quality. I have put 60 rounds threw the gun performed very well every thing fit together perfectly I would definitely recommended Aero pro...
Read More...
6/6 found this helpful
Helpful Positive Review Favorite upper ! by Chris, Verified Owner, June 26, 2024
I have put 1500 rounds thru this upper with out a single hiccup . Ole girl paired with Aero lower and she runs with a h buffer and jp spring . She never gets tired of spitting so I try to keep her full and cool .
3/3 found this helpful
Helpful Positive Review Great Quality 300 Blackout Upper, Lightweight and sleek by howl, March 11, 2019
Really love this aero precision 300 blackout upper, very sleek and lightweight, perfect way to upgrade and modernize an AR15. Fits my Rock River Arms 223/556 lower perfectly looks like a new rifle. Love the rail upper picatinny and 3/4 MLOK.
5/5 found this helpful
Helpful Positive Review Aero precision M4E1 300 Blackout quad rail barrel by John, Verified Owner, April 28, 2024
This is the perfect barrel for my PDW build. being a complete upper receiver/barrel combo makes this a whole lot easier, quicker and with AeroPrecisions high quality. Along with being very affordable you can’t bet Opticsplanet value and ease of ...
Read More...
1/1 found this helpful
Helpful Positive Review Aero precision m4e1 upper 300 blackout by Pepe, Verified Owner, March 2, 2017
Very good upper in FDE, no scratches or blemishes and very easy to clean with minor effort. I am not crazy about the quad rail but like that it doesn't run all the way back, making it more comfortable to hold with my support hand. I have a MI mlok sl...
Read More...
1/6 found this helpful
Helpful Positive Review Aero 300 blackout upper by BRH, November 24, 2021
Very nice fit & finish. Would recommend over many other uppers. The finish seems very thick on the metal & the attention to detail is extremely nice to see. My model is a 16 inch barrel with a 15 inch m lock style cover.
2/3 found this helpful
Read All 12 Reviews
Show In Stock Only
8 Models Available
Finish
All
Color
All
Additional Features
All
Search
Click to select this item for your bundle offer!

Buy Together and Save

As low as $492.33
You Save Up to 17%
Receive $12.91 OP Bucks

made-in-usa-flag Made in USA

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 16in .300 Blackout Barrel Complete Upper Receiver with Flash Hider

Aero Precision M4E1 .300 BLK Complete Uppers are equipped with CMV medium profile barrels. Along with excellent fit and finish, these AR15 Upper Receivers from Aero Precision come with Gen 2 Enhanced free-float handguards with Picatinny top rail and your choice of rail types on the other 3 faces. These solid Aero Precision M4E1 Complete Uppers are compatible with standard AR15/M4 components and have been MPI and HP tested. Get more power and accuracy when you upgrade to one of these Aero Precision M4E1 .300 Blackout Complete Upper Assemblies.image

Specifications for Aero Precision M4E1 16in .300 Blackout Barrel Complete Upper Receiver with Flash Hider:

Manufacturer: Aero Precision
Caliber: .300 AAC Blackout
Overall Length: 26 in
Barrel Length: 16 in
Barrel Profile: DRP
Gas System Length: Pistol Length
Barrel Twist Rate: 1-7
Muzzle Device: A2 Flash Hider
Gun Model: AR-15
Condition: New
Handguard Length: 12 in
Gun Make: AR Platform
Barrel Material: 4150 Chrome Moly Vanadium
Bolt Carrier Group Included: No
Charging Handle Included: No
Weight: 48.5 oz
Magazine Included: No
Country of Origin: USA

Features of Aero Precision M4E1 16in .300 Blackout Barrel Complete Upper Receiver 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 socket 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.
  • 16-inch 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.
  • Standard A2 Flash Hider.
  • Barrel nut and wrench are included.
  • Does not include BCG or charging handle.

Package Contents:

  • Aero Precision M4E1 16in .300 Blackout Barrel Complete Upper Receiver with Flash Hider
  • Barrel Nut
  • Wrench

What firearm models does the manufacturer say Aero Precision M4E1 16in .300 Blackout Barrel Complete Upper Receiver with Flash Hider is compatible with?

The manufacturer says that Aero Precision M4E1 16in .300 Blackout Barrel Complete Upper Receiver with Flash Hider is compatible with AR-15

Aero Precision M4E1 16in .300 Blackout Barrel Complete Upper Receiver with Flash Hider Orderable Models

List of Orderable Models

Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EQ-12 HG, No BCG/Charging Handle, Gen 2, FDE Cerakote, 16in, APAR600232Q14 , MPN: APAR640232Q14 , UPC: 815421023213 , Code: 29D-UFH-AGFDR-APAR600232Q14
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EM-15 HG, No BCG/Charging Handle, Gen 2, Anodized Black, 16in, APAR600251M14 , MPN: APAR640251M14 , UPC: 815421020946 , Code: 29D-UFH-AGFDR-APAR600251M14
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EM-12 HG, No BCG/Charging Handle, Gen 2, Anodized Black, 16in, APAR600231M14 , MPN: APAR640231M14 , UPC: 815421022841 , Code: 29D-UFH-AGFDR-APAR600231M14
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EQ-15 HG, No BCG/Charging Handle, Gen 2, FDE Cerakote, 16in, APAR600252Q14 , MPN: APAR640252Q14 , UPC: 815421023596 , Code: 29D-UFH-AGFDR-APAR600252Q14
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EQ-12 HG, No BCG/Charging Handle, Gen 2, Anodized Black, 16in, APAR600231Q14 , MPN: APAR640231Q14 , UPC: 815421022995 , Code: 29D-UFH-AGFDR-APAR600231Q14
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EM-12 HG, No BCG/Charging Handle, Gen 2, FDE Cerakote, 16in, APAR600232M14 , MPN: APAR640232M14 , UPC: 815421023077 , Code: 29D-UFH-AGFDR-APAR600232M14
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EQ-15 HG, No BCG/Charging Handle, Gen 2, Anodized Black, 16in, APAR600251Q14 , MPN: APAR640251Q14 , UPC: 815421023398 , Code: 29D-UFH-AGFDR-APAR600251Q14
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EM-15 HG, No BCG/Charging Handle, Gen 2, FDE Cerakote, 16in, APAR600252M14 , MPN: APAR640252M14 , UPC: 815421021455 , Code: 29D-UFH-AGFDR-APAR600252M14

Aero Precision M4E1 16in .300 Blackout Barrel Complete Upper Receiver with Flash Hider Unavailable & Discontinued Models

List of Unorderable Models

DEMO, Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EM-12 HG, No BCG/Charging Handle, Gen 2, Anodized Black, 16in, APAR600231M14 , MPN: APAR640231M14-DEMO , Code: 29D-UFH-AGFDR-APAR600231M14-DEMO
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EK-15 HG, No BCG/Charging Handle, Gen 2, Anodized Black, 16in, APAR600251P14 , MPN: APAR640251P14 , UPC: 815421023329 , Code: 29D-UFH-AGFDR-APAR600251P14
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EK-15 HG, No BCG/Charging Handle, Gen 2, FDE Cerakote, 16in, APAR600252P14 , MPN: APAR640252P14 , UPC: 815421023510 , Code: 29D-UFH-AGFDR-APAR600252P14
DEMO, Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EQ-15 HG, No BCG/Charging Handle, Gen 2, FDE Cerakote, 16in, APAR600252Q14 , MPN: APAR640252Q14-DEMO , Code: 29D-UFH-AGFDR-APAR600252Q14-DEMO
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EK-12 HG, No BCG/Charging Handle, Gen 2, Anodized Black, 16in, APAR600231P14 , MPN: APAR640231P14 , UPC: 815421022919 , Code: 29D-UFH-AGFDR-APAR600231P14
Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EK-12 HG, No BCG/Charging Handle, Gen 2, FDE Cerakote, 16in, APAR600232P14 , MPN: APAR640232P14 , UPC: 815421023138 , Code: 29D-UFH-AGFDR-APAR600232P14
DEMO, Aero Precision Complete Upper Receiver, M4E1, .300 Blackout Barrel EM-15 HG, No BCG/Charging Handle, Gen 2, Anodized Black, 16in, APAR600251M14 , MPN: APAR640251M14-DEMO , Code: 29D-UFH-AGFDR-APAR600251M14-DEMO
Compare (0)
1 item has been added
Add at least two items to compare