Description

The M4E1 upper receiver is a one-piece design combining the handguard mounting platform with the upper itself. Through superior engineering, we have condensed the parts needed to mount a free-floated handguard to a mere 8 screws. Since the handguard mounting surface and upper are of the same forging, not only is it a stronger system, but we are able to make additional lightening cuts to save weight and allow for more efficient cooling.

Ease of installation – Simply insert your barrel assembly into the M4E1 upper, tighten it using the provided barrel nut and wrench, slide your rail on and tighten the rail screws. Within minutes you have a modular, free-floated rail.

Features:

M4 Feedramps
.250 takedown pin holes
Lazer engraved T-marks
Comes assembled, with dust cover and forward assist installed

M4E1 Specific Details:

Handguard mounting platform is forged into the receiver
Compatible with Aero Precision Enhanced and Quantum Series handguards but also fits most BAR-system handguards
Barrel nut and wrench are included
These uppers are not piston-kit compatible
Will support barrels with a diameter up to 1″

Includes:

AR15 M4E1 Upper Receiver in Anodized Black
Port Door and Forward Assist installed
Barrel nut
Barrel nut wrench

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Shipping & Delivery

WHAT WILL I BE CHARGED FOR SHIPPING

Important Information Regarding Shipments and Delivery

Quoted delivery times on your order summary page are estimates and cannot be guaranteed(7 DAYS MAX).

The recent pandemic continues to have a 'ripple effect' on shipping and delivery practices on many levels, including those of our vendors, manufacturers, and delivery providers. In addition, last year's scenario saw many individuals and families becoming more engaged in outdoor activities which increased overall demand for outdoor products.

Nevertheless, all our warehouses and retail locations are extremely busy as they work tirelessly to ensure our outdoor customers continue to get the products they need, in the time they need them.

Your patience as we work through these challenging times is very much appreciated!

Got some amazing items picked out for your next outdoor adventure? Awesome! Now let's check below for shipping information and get your order on it's way!

Information below is for shipping orders to your address.

Click on the button for where your order will be shipped to view the shipping rates chart and information on shipping to your location.

Generally, we ship at a rate of just $30 which includes the hazmat fee. We take care of any extra charges and this is because we do care.

Additional Disclaimers

Some items require an additional shipping charge due to size, weight, or quantity ordered. These charges will be noted under the red Important Notice on the product page as well as be reflected on your order total during checkout.
Hazardous merchandise cannot be expedited or shipped internationally. A hazardous charge may be applied for ground shipping. If there is an applicable hazardous fee it will be shown on the product page under the Important Notice.
Orders containing hazardous items (with the $20.00 hazardous charge) and orders over $1,000 will require a signature upon delivery.
Most backordered items will ship USPS.

Aero Precision M4E1 Enhanced Upper Receiver Black 5.56 / .223 Rem