Does the Yankee Hill Machine .223 Rem/5.56 Billet work with the Aero Precision M4E1 Threaded Barreled?

Yankee Hill Machine .223 Rem/5.56 Billet Lower Receiver, Hardcoat Anodized Matte Black - 125-BILLET

Lower Receiver

Yankee Hill Machine .223 Rem/5.56 Billet

from $245.75

Aero Precision M4e1 Threaded Ar-15 Barreled Upper 5.56 Mid-Length Atlas R-One - 16"

Upper Receiver

Aero Precision M4E1 Threaded Barreled Upper 5.56 Mid-Length

from $543.99

Yankee Hill Machine lower and Aero Precision upper compatibility

Yes, they fit

The Yankee Hill Machine .223 Rem/5.56 Billet works with the Aero Precision M4E1 Threaded Barreled Upper 5.56. Our compatibility rules found no conflict between them.

This exact setup has been built more than once on GunPartPicker.

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 Yankee Hill Machine lower and Aero Precision upper

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

Upper Receivers builders put on the Yankee Hill Machine .223 Rem/5.56 Billet

Share of builds with the Yankee Hill Machine .223 Rem/5.56 Billet and any upper

Lower Receivers builders put under the Aero Precision M4E1 Threaded Barreled

Share of builds with the Aero Precision M4E1 Threaded Barreled and any lower

  • Yankee Hill Machine .223 Rem/5.56 Billet

    Of lower picks
    0.6%
    Median paid
    $246

  • Aero Precision M4E1 Threaded Barreled

    Of upper picks
    1.5%
    Median paid
    $517
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 Yankee Hill Machine lower and Aero Precision upper

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

Charging Handle

Bolt Carrier Group

Trigger

Pistol Grip

Optic

Stock & Brace

Light

Yankee Hill Machine .223 vs Aero Precision M4E1 Threaded: specs and prices

Yankee Hill Machine .223Aero Precision M4E1 Threaded
Best price$251.09 at Guns.com$543.99 at KY Gun Company
Stores1 of 4 in stock0 of 5 in stock
AssemblyStrippedComplete
PlatformAR-15AR-15
Caliber5.56 NATO5.56 NATO
Trigger Pin.154n/a
FinishHardcoat Anodizedn/a
ColorBlackn/a
Gas System Lengthn/aMid-Length
Receiver Typen/aM4E1
Lengthn/a16

Both for $795.08 at today's best prices.

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.

Yankee Hill Machine .223 Rem/5.56 Billet

Aero Precision M4E1 Threaded Barreled Upper 5.56

Price history, last 90 days

  • Yankee Hill Machine .223 Rem/5.56 Billet: lowest $245.75 on Jul 11, highest $310.75 on Jul 21 over the last 90 days.
  • Aero Precision M4E1 Threaded Barreled: lowest $517.32 on Jul 7, highest $589.99 on Jul 12 over the last 90 days.

Upper Receivers frequently paired with the Yankee Hill Machine .223 Rem/5.56 Billet

Most picked next to it in real builds. Only parts our rules say fit the Yankee Hill Machine .223 Rem/5.56 Billet are listed.

Lower Receivers frequently paired with the Aero Precision M4E1 Threaded Barreled

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