Does the Daniel Defense DD4 RIIIS 5.56mm NATO work with the LANTAC M-Spec 5.56?

Daniel Defense DD4 RIIIS 5.56mm NATO Flat Dark Earth Upper Receiver Group 23-191-02397-011

Upper Receiver

Daniel Defense DD4 RIIIS 5.56mm NATO Flat Dark Earth Group

from $1454.00

Lantac M-Spec 5.56 Ar-15 Bolt Carrier Group - Black Nitride

Bolt Carrier Group

LANTAC M-Spec 5.56

from $170.99

Daniel Defense upper and Lantac bolt carrier group compatibility

Yes, they fit

The Daniel Defense DD4 RIIIS 5.56mm NATO Flat Dark works with the LANTAC M-Spec 5.56. Our compatibility rules found no conflict between them.

No one has built this exact setup yet, but Daniel Defense uppers with Lantac bolt carrier groups are a common pairing.

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 Daniel Defense upper and Lantac 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 RIIIS 5.56mm NATO

Share of builds with the Daniel Defense DD4 RIIIS 5.56mm NATO and any bolt carrier group

Upper Receivers builders put under the LANTAC M-Spec 5.56

Share of builds with the LANTAC M-Spec 5.56 and any upper

  • Daniel Defense DD4 RIIIS 5.56mm NATO

    Of upper picks
    0.1%
    Median paid
    $1412

  • LANTAC M-Spec 5.56

    Of bolt carrier group picks
    0%
    Median paid
    $171
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 Lantac 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

Optic

Trigger

Lower Receiver

Stock & Brace

Barrel

Suppressor

Handguard

Muzzle Device

Pistol Grip

Daniel Defense DD4 RIIIS vs LANTAC M-Spec 5.56: specs and prices

Daniel Defense DD4 RIIISLANTAC M-Spec 5.56
Best price$1527.00 at Optics Planet$170.99 at Primary Arms
Stores1 of 5 in stock5 of 6 in stock
AssemblyCompleten/a
PlatformAR-15n/a
Gas System LengthCarbinen/a
Caliber5.56 NATOn/a
Cartridgen/a5.56 NATO
Stylen/aM16 Bolt Carrier
Finishn/aNitride
Materialn/aSteel

Both for $1697.99 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.

Daniel Defense DD4 RIIIS 5.56mm NATO Flat Dark

LANTAC M-Spec 5.56

Price history, last 90 days

  • Daniel Defense DD4 RIIIS 5.56mm NATO: lowest $1454.00 on Jul 5, highest $1527.00 on Aug 2 over the last 90 days.
  • LANTAC M-Spec 5.56: lowest $170.99 on Jul 6, highest $262.99 on Jul 5 over the last 90 days.

Bolt Carrier Groups frequently paired with the Daniel Defense DD4 RIIIS 5.56mm NATO

Most picked next to it in real builds. Only parts our rules say fit the Daniel Defense DD4 RIIIS 5.56mm NATO are listed.

Upper Receivers frequently paired with the LANTAC M-Spec 5.56

Most picked next to it in real builds. Only parts our rules say fit the LANTAC M-Spec 5.56 are listed.