Does the Radian Weapons AX556 Billet work with the LBE Unlimited ARUPPER 5.56x45mm NATO?

Radian Weapons Ax556 Ambidextrous Billet Ar-15 Lower Receiver

Lower Receiver

Radian Weapons AX556 Billet

from $514.95

LBE Unlimited ARUPPER AR-15 Upper Receiver 5.56x45mm NATO 7075-T6 Aluminum Black Finish 0\" Barrel

Upper Receiver

LBE Unlimited ARUPPER 5.56x45mm NATO 7075-T6 Aluminum Finish

from $94.44

Radian lower and LBE Unlimited upper compatibility

Yes, they fit

The Radian Weapons AX556 Billet works with the LBE Unlimited ARUPPER 5.56x45mm NATO 7075-T6. Our compatibility rules found no conflict between them.

This exact setup is in a real GunPartPicker build.

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 Radian lower and LBE Unlimited upper

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

Upper Receivers builders put on the Radian Weapons AX556 Billet

Share of builds with the Radian Weapons AX556 Billet and any upper

Lower Receivers builders put under the LBE Unlimited ARUPPER 5.56x45mm NATO

Share of builds with the LBE Unlimited ARUPPER 5.56x45mm NATO and any lower

  • Radian Weapons AX556 Billet

    Of lower picks
    0.1%
    Median paid
    $490

  • LBE Unlimited ARUPPER 5.56x45mm NATO

    Of upper picks
    0.1%
    Median paid
    $94
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 Radian lower and LBE Unlimited upper

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

Pistol Grip

Charging Handle

Optic

Gas Block

Trigger

Bolt Carrier Group

Handguard

Muzzle Device

Suppressor

Barrel

Buffer Tube Assembly

Radian Weapons AX556 Billet vs LBE Unlimited ARUPPER: specs and prices

Radian Weapons AX556 BilletLBE Unlimited ARUPPER
Best price$514.95 at Brownells$111.32 at KY Gun Company
Stores6 of 9 in stock3 of 6 in stock
AssemblyStrippedStripped
PlatformAR-15AR-15
CaliberMulti5.56 NATO
Trigger Pin.154n/a
FinishHardcoat Anodizedn/a
ColorBlackn/a

Both for $626.27 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 Weapons AX556 Billet

LBE Unlimited ARUPPER 5.56x45mm NATO 7075-T6

Price history, last 90 days

  • Radian Weapons AX556 Billet: lowest $514.95 on Jul 5, highest $533.99 on Sep 12 over the last 90 days.
  • LBE Unlimited ARUPPER 5.56x45mm NATO: lowest $93.53 on Jul 5, highest $124.99 on Sep 24 over the last 90 days.

Upper Receivers frequently paired with the Radian Weapons AX556 Billet

Most picked next to it in real builds. Only parts our rules say fit the Radian Weapons AX556 Billet are listed.

Lower Receivers frequently paired with the LBE Unlimited ARUPPER 5.56x45mm NATO

Most picked next to it in real builds. Only parts our rules say fit the LBE Unlimited ARUPPER 5.56x45mm NATO are listed.