Back to old site

If there is anything in your cart, it will not be brought over to the old site.

l_100025506_2.jpg
l_100025506_2.jpg
l_100025506_3.jpg
l_100025509_3.jpg
l_100025509_2.jpg
l_100025506_2.jpg
l_100025506_2.jpg
l_100025506_3.jpg
l_100025509_3.jpg
l_100025509_2.jpg
None
None OFF

AERO PRECISION M4E1 5.56 ASSEMBLED UPPER RECEIVER MID LENGTH W/G2 HANDGUARD

Barrel Length
Brownells #
MFR #
UPC
$574.99 - $589.99
Coupon Code
Purchase Limit Help

In stock

Can we ship this to you?
{{restriction.odmShipCheckMessage}}
Specifications

Please select from the options above to see detailed specifications.

Restriction

Please select from the options above to see detailed restrictions.

Can we ship this to you?
{{restriction.odmShipCheckMessage}}
Description

Aero Precision’s M4E1 5.56mm Mid-Length Upper Receiver comes fully assembled, lacking only a bolt/carrier group and charging handle - the two components most often replaced by customizers. "Mid-Length" refers to the gas tube, which is longer than the standard carbine tube to slow down gas velocity and actually improve reliability in cycling. This is actually a carbine upper, available with either a military 14.5" or civilian 16" barrel (see Gun Tech Note below).

The core of the M4E1 5.56mm Mid-Length Upper Receiver is Aero’s forged M4E1 receiver that combines the looks of a machined receiver with "mil-spec" parts compatibility (including BCG and charging handle). It’s mated to Aero’s latest Gen 2 Enhanced M-LOK Handguard to form a monolithic assembly with a full-length Picatinny top rail, and plenty of attachment points for M-LOK-accessories. QD sling swivel sockets at the 3/6/9 o’clock positions. The extended handguard covers the low-profile gas block. Texturing milled into the flats gives you an enhanced grasping surface - plus, it adds to your gun’s unique appearance.

FEATURES

  • Forged 7075 T6 aluminum receiver, Mil 8625 Type 3 Class 2 hardcoat anodized
  • Ejection port cover & forward assist installed
  • 4150 chrome-moly-vanadium barrel, 1-7" rifling, black QPQ finish
  • Chambered for 5.56x45 NATO; accepts .223 Remington, too
  • MID-LENGTH gas system
  • Handguard: 1.78" inside diameter clears most muzzle devices and 1.5" suppressors
  • A2-style flash suppressor installed - NOT pinned or welded
  • 1/2"-28 tpi muzzle threads
  • .250" dia. pivot/takedown pin holes
  • Bolt/carrier group & charging handle NOT included
  • All NFA rules apply

Brownells Gun Tech™ Note: The M4E1 5.56mm Mid-Length Upper Receiver is available with a 14.5" or 16" barrel. The flash suppressor on the 14.5" barrel is not pinned or welded in place. Per the National Firearms Act, the muzzle device MUST be pinned and welded to achieve the minimum 16" OAL for a civilian rifle build. The 16" barreled upper has sufficient barrel length to meet NFA requirements without permanently attaching the flash suppressor.

Available options: 
100025506 100025509
Please select a FFL Dealer

or
7 dealers near
Distance:
10miles
arrow-down
Sort by:
Nearest first
arrow-down
pin wrong
No dealers found

Please search by another zipcode to find the nearest dealer.

Close
Brownells Retail Store
Pin in
Clock
You must select required check box

Note:

Listed hours & fees are not guaranteed and subject to change. Please contact the dealer to confirm current hours & fees.
* Must accept required fields.
  • Pin in Brownells Featured Dealers

    Choosing a Brownells Featured Dealer is the fastest and easiest way to complete your purchase. Brownells Featured Dealers have agreed to perform FFL transfers on guns purchased online from Brownells. We have their necessary FFL information on file and your FFL order will ship directly to them once processed.

  • Pin in Standard Dealers

    Standard Dealers have not yet agreed to perform FFL transfers on guns purchased online from Brownells. If you choose a Standard Dealer, you are responsible for contacting that dealer and arranging for the dealer to submit a signed copy of an FFL and to give Brownells permission to ship the gun.

  • Pin in Not Available Dealers

    Not Available Dealers are dealers Brownells cannot ship guns to at this time. These dealers either do not meet our requirements for FFL transfers, or prefer to not perform transfers for guns purchased online from Brownells.

Switch view map
7 dealers near

You May Also Like

Right Badge OFF  
5 Stars

200

300

Customers Also Viewed

Right Badge OFF  
5 Stars

200

300