Does the Aero Precision EPC-9 Threaded 11\" 9mm work with the FailZero AR9?

Aero Precision EPC-9 Threaded 11\" 9mm Complete Upper Receiver with ATLAS S-ONE 10.3\" Handguard - Anodized Black - APAR620103M86

Upper Receiver

Aero Precision EPC-9 Threaded 11\" 9mm

from $494.99

FailZero AR9, 9mm BCG, Black Nitride

Bolt Carrier Group

FailZero AR9

from $132.03

Aero Precision upper and FailZero bolt carrier group compatibility

Yes, they fit

The Aero Precision EPC-9 Threaded 11\" 9mm works with the FailZero AR9. 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 Aero Precision upper and FailZero bolt carrier group

Backed by thousands of qualified builds that have both an upper and a bolt carrier group.

Bolt Carrier Groups builders put on the Aero Precision EPC-9 Threaded 11\" 9mm

Share of builds with the Aero Precision EPC-9 Threaded 11\" 9mm and any bolt carrier group

Upper Receivers builders put under the FailZero AR9

Share of builds with the FailZero AR9 and any upper

  • Aero Precision EPC-9 Threaded 11\" 9mm

    Of upper picks
    0%
    Median paid
    $445

  • FailZero AR9

    Of bolt carrier group picks
    0.3%
    Median paid
    $131
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 FailZero bolt carrier group

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

Charging Handle

Trigger

Pistol Grip

Lower Receiver

Stock & Brace

Suppressor

Optic

Barrel

Handguard

Aero Precision EPC-9 Threaded vs FailZero AR9: specs and prices

Aero Precision EPC-9FailZero AR9
Best price$494.99 at Optics Planet$132.03 at BattleHawk Armory
Stores0 of 1 in stock4 of 4 in stock
AssemblyCompleten/a
PlatformAR-9n/a
Caliber9mmn/a
Receiver TypeA4n/a
Length11n/a
Cartridgen/a9mm
Stylen/aPistol Caliber Blow Back Carrier
Finishn/aNitride

Both for $627.02 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.

Aero Precision EPC-9 Threaded 11\" 9mm

FailZero AR9

Price history, last 90 days

  • Aero Precision EPC-9 Threaded 11\" 9mm: lowest $470.24 on Jul 5, highest $494.99 on Jul 12 over the last 90 days.
  • FailZero AR9: lowest $132.03 on Jul 5, highest $179.99 on Aug 28 over the last 90 days.

Bolt Carrier Groups frequently paired with the Aero Precision EPC-9 Threaded 11\" 9mm

Most picked next to it in real builds. Only parts our rules say fit the Aero Precision EPC-9 Threaded 11\" 9mm are listed.

Upper Receivers frequently paired with the FailZero AR9

Most picked next to it in real builds. Only parts our rules say fit the FailZero AR9 are listed.