Does the Criterion 20" HBAR Contour work with the LANTAC M-Spec 5.56?

Criterion Barrels Inc 20" Hbar Contour, Rifle Gas System, 223 Wylde

Barrel

Criterion 20" HBAR Contour

from $313.49

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

Bolt Carrier Group

LANTAC M-Spec 5.56

from $170.99

Criterion Barrels barrel and Lantac bolt carrier group compatibility

Yes, they fit

The Criterion 20" HBAR Contour works with the LANTAC M-Spec 5.56. 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 Criterion Barrels barrel and Lantac bolt carrier group

Backed by thousands of qualified builds that have both a barrel and a bolt carrier group.

Bolt Carrier Groups builders put on the Criterion 20" HBAR Contour

Share of builds with the Criterion 20" HBAR Contour and any bolt carrier group

Barrels builders put under the LANTAC M-Spec 5.56

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

  • Criterion 20" HBAR Contour

    Of barrel picks
    0.2%
    Median paid
    $313

  • 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 Criterion Barrels barrel 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

Handguard

Upper Receiver

Lower Receiver

Trigger

Pistol Grip

Gas Block

Muzzle Device

Stock & Brace

Criterion 20" HBAR Contour vs LANTAC M-Spec 5.56: specs and prices

Criterion 20" HBAR ContourLANTAC M-Spec 5.56
Best price$313.49 at Brownells$170.99 at Primary Arms
Stores0 of 2 in stock5 of 6 in stock
Caliber.223 Wylden/a
Gas SystemRiflen/a
Length20n/a
Twist1:8n/a
ContourHBARn/a
Thread1/2x28n/a
Cartridgen/a5.56 NATO
Stylen/aM16 Bolt Carrier
Finishn/aNitride
Materialn/aSteel
Weight2.9n/a

Both for $484.48 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.

Criterion 20" HBAR Contour

LANTAC M-Spec 5.56

Price history, last 90 days

  • Criterion 20" HBAR Contour: lowest $313.49 on Jul 5, highest $313.49 on Jul 5 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 Criterion 20" HBAR Contour

Most picked next to it in real builds. Only parts our rules say fit the Criterion 20" HBAR Contour are listed.

Barrels 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.