Does the Aero Precision M4E1 Threaded Upper work with the Aero Precision 5.56 Mid-Length?

Aero Precision M4E1 Threaded Complete Upper, 16" 5.56 Mid-Length Barrel w/ 15" ATLAS R-ONE M-LOK Handguard - FDE

Upper Receiver

Aero Precision M4E1 Threaded Upper

from $593.99

Aero Precision 5.56 Mid-Length Ar-15 Barrel - Pinned Epsilon Sl - 14.5"

Barrel

Aero Precision 5.56 Mid-Length

Aero Precision upper and Aero Precision barrel compatibility

Yes, they fit

The Aero Precision M4E1 Threaded Upper works with the Aero Precision 5.56 Mid-Length. Our compatibility rules found no conflict between them.

No one has built this exact setup yet, but Aero Precision uppers with Aero Precision barrels are a common pairing.

Counted from real GunPartPicker builds: parts lists people put together while planning to buy.

Checked by the same rules the AR builder runs on every part you add: caliber, frame size, receiver pattern, thread pitch and gas length.

Fit is judged from the specs retailers list, which can be missing or wrong. Confirm with the manufacturer before you buy, and have a qualified gunsmith check any build before you fire it.

How often builders pair the Aero Precision upper and Aero Precision barrel

Backed by thousands of qualified builds that have both an upper and a barrel.

Barrels builders put on the Aero Precision M4E1 Threaded Upper

Share of builds with the Aero Precision M4E1 Threaded Upper and any barrel

Upper Receivers builders put under the Aero Precision 5.56 Mid-Length

Share of builds with the Aero Precision 5.56 Mid-Length and any upper

  • Aero Precision M4E1 Threaded Upper

    Of upper picks
    2.3%
    Median paid
    $594

  • Aero Precision 5.56 Mid-Length

    Of barrel picks
    0.9%
    Median paid
    $237
How we count ⌄

These shares come from GunPartPicker's build data: real parts lists people put together while planning a purchase, not sales or surveys. A build counts a part only when it is the final pick for its slot, so parts that were swapped out never count. Fit never comes from these numbers; it comes from our compatibility rules alone.

Frequently built with the Aero Precision upper and Aero Precision barrel

The part builders pick most often in each slot alongside these two, checked against both. Parts that conflict are left out.

Charging Handle

Lower Receiver

Bolt Carrier Group

Trigger

Stock & Brace

Pistol Grip

Optic

Aero Precision M4E1 Threaded vs Aero Precision 5.56 Mid-Length: specs and prices

Aero Precision M4E1 ThreadedAero Precision 5.56
Best price$593.99 at AR15 Discountsn/a
Stores0 of 2 in stockn/a
AssemblyCompleten/a
PlatformAR-15n/a
Gas System LengthMid-Lengthn/a
Caliber5.56 NATO5.56 NATO
Receiver TypeM4E1n/a
Length1614.5
Gas Systemn/aMid-Length
Twistn/a1:7
Contourn/aM4
Threadn/a1/2x28
Weightn/a26

Today's best prices and 90 day price history

Every store we track for each part, cheapest in stock first. Prices are checked through the day.

Aero Precision M4E1 Threaded Upper

  • AR15 Discountsout of stock$593.99
  • Dirty Bird Industriesout of stock$624.99

Aero Precision 5.56 Mid-Length

No store lists it today.

Price history, last 90 days

  • Aero Precision M4E1 Threaded Upper: lowest $593.99 on Jul 5, highest $624.99 on Jul 14 over the last 90 days.

Barrels frequently paired with the Aero Precision M4E1 Threaded Upper

Most picked next to it in real builds. Only parts our rules say fit the Aero Precision M4E1 Threaded Upper are listed.

Upper Receivers frequently paired with the Aero Precision 5.56 Mid-Length

Most picked next to it in real builds. Only parts our rules say fit the Aero Precision 5.56 Mid-Length are listed.