Does the Radian AX556 work with the Tacfire 7" Upper 5.56x45mm 1:8?

Radian AX556 Lower Receiver

Lower Receiver

Radian AX556

from $514.95

Tacfire 7" Complete Upper Assembly 5.56x45mm 1:8, Black - BU-556-7

Upper Receiver

Tacfire 7" Upper 5.56x45mm 1:8

from $241.33

lower and TacFire upper compatibility

Yes, they fit

The Radian AX556 works with the Tacfire 7" Upper 5.56x45mm 1:8. Our compatibility rules found no conflict between them.

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 lower and TacFire upper

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

Lower Receivers builders put under the Tacfire 7" Upper 5.56x45mm 1:8

Share of builds with the Tacfire 7" Upper 5.56x45mm 1:8 and any lower

  • Radian AX556

    Not in enough builds yet to report.

  • Tacfire 7" Upper 5.56x45mm 1:8

    Of upper picks
    1.1%
    Median paid
    $240
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 lower and TacFire 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

Stock & Brace

Optic

Light

Suppressor

Radian AX556 vs Tacfire 7" Upper 5.56x45mm 1:8: specs and prices

Radian AX556Tacfire 7" Upper 5.56x45mm
Best price$514.95 at AR15 Discounts$241.33 at BattleHawk Armory
Stores2 of 2 in stock6 of 6 in stock
AssemblyStrippedComplete
PlatformAR-15AR-15
Caliber5.56 NATO5.56 NATO
FinishHardcoat Anodizedn/a
ColorBlackn/a
Lengthn/a7

Both for $756.28 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.

Radian AX556

Tacfire 7" Upper 5.56x45mm 1:8

Price history, last 90 days

  • Radian AX556: lowest $514.95 on Jul 5, highest $514.95 on Jul 5 over the last 90 days.
  • Tacfire 7" Upper 5.56x45mm 1:8: lowest $258.99 on Jul 15, highest $289.99 on Aug 2 over the last 90 days.

Upper Receivers most paired with lowers

The Radian AX556 is not in enough builds yet, so these are the most picked next to any lower. Only parts our rules say fit the Radian AX556 are listed.

Lower Receivers frequently paired with the Tacfire 7" Upper 5.56x45mm 1:8

Most picked next to it in real builds. Only parts our rules say fit the Tacfire 7" Upper 5.56x45mm 1:8 are listed.