Does the Daniel Defense DD4 RIIIS 5.56mm NATO work with the LANTAC M-SPEC 5.56x45mm NATO/.223?

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 5.56x45mm NATO/.223 Titanium. 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

  • Daniel Defense DD4 RIIIS 5.56mm NATO

    Of upper picks
    0.1%
    Median paid
    $1412
  • LANTAC M-SPEC 5.56x45mm NATO/.223

    Not in enough builds yet to report.

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.

Daniel Defense DD4 RIIIS vs LANTAC M-SPEC 5.56x45mm: specs and prices

Daniel Defense DD4 RIIISLANTAC M-SPEC 5.56x45mm
Best price$1527.00 at Optics Planet$179.99 at Optics Planet
Stores1 of 5 in stock4 of 5 in stock
AssemblyCompleten/a
PlatformAR-15n/a
Gas System LengthCarbinen/a
Caliber5.56 NATOn/a
Cartridgen/a5.56 NATO
Finishn/aTitanium Nitride

Both for $1706.99 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 5.56x45mm NATO/.223 Titanium

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 5.56x45mm NATO/.223: lowest $175.67 on Jul 7, highest $223.99 on Sep 18 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 most paired with Lantac bolt carrier groups

The LANTAC M-SPEC 5.56x45mm NATO/.223 is not in enough builds yet, so these are the most picked next to any Lantac bolt carrier group. Only parts our rules say fit the LANTAC M-SPEC 5.56x45mm NATO/.223 are listed.