Does the Daniel Defense DD4 FDE RIII Barreled work with the Radical Firearms 7.62x39mm Melonite?

Daniel Defense DD4 FDE RIII Barreled Upper Receiver - 11.5" - Primary Arms Exclusive

Upper Receiver

Daniel Defense DD4 FDE RIII Barreled

from $999.99

Radical Firearms 7.62x39mm Melonite Bolt Carrier Group

Bolt Carrier Group

Radical Firearms 7.62x39mm Melonite

Daniel Defense upper and Radical Firearms bolt carrier group compatibility

They fit, with a catch

The Daniel Defense DD4 FDE RIII Barreled works with the Radical Firearms 7.62x39mm Melonite, with one thing to check: Bolt Carrier Group (7.62x39mm) has a 7.62x39 bolt; a 5.56 NATO build needs a 5.56 / .223 bolt.

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 Daniel Defense upper and Radical Firearms 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 Daniel Defense DD4 FDE RIII Barreled

Share of builds with the Daniel Defense DD4 FDE RIII Barreled and any bolt carrier group

Upper Receivers builders put under the Radical Firearms 7.62x39mm Melonite

Share of builds with the Radical Firearms 7.62x39mm Melonite and any upper

  • Daniel Defense DD4 FDE RIII Barreled

    Of upper picks
    0%
    Median paid
    $1000

  • Radical Firearms 7.62x39mm Melonite

    Of bolt carrier group picks
    0%
    Median paid
    n/a
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 Daniel Defense upper and Radical Firearms 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

Lower Receiver

Suppressor

Stock & Brace

Pistol Grip

Handguard

Optic

Daniel Defense DD4 FDE RIII vs Radical Firearms 7.62x39mm: specs and prices

Daniel Defense DD4 FDE RIIIRadical Firearms 7.62x39mm
Best price$999.99 at Primary Armsn/a
Stores0 of 1 in stockn/a
AssemblyCompleten/a
PlatformAR-15n/a
Caliber5.56 NATOn/a
Length11.5n/a
Cartridgen/a7.62x39mm
Stylen/aM16 Bolt Carrier
Finishn/aNitride

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.

Daniel Defense DD4 FDE RIII Barreled

Radical Firearms 7.62x39mm Melonite

No store lists it today.

Price history, last 90 days

  • Daniel Defense DD4 FDE RIII Barreled: lowest $999.99 on Jul 7, highest $999.99 on Jul 7 over the last 90 days.

Bolt Carrier Groups frequently paired with the Daniel Defense DD4 FDE RIII Barreled

Most picked next to it in real builds. Only parts our rules say fit the Daniel Defense DD4 FDE RIII Barreled are listed.

Upper Receivers frequently paired with the Radical Firearms 7.62x39mm Melonite

Most picked next to it in real builds. Only parts our rules say fit the Radical Firearms 7.62x39mm Melonite are listed.