Does the Criterion 16" Hybrid Contour work with the ToolCraft 6.8 SPC Nitride?

Criterion Barrels Inc 16" Hybrid Contour, Mid-Length Gas System, 223 Wylde

Barrel

Criterion 16" Hybrid Contour

from $283.99

ToolCraft 6.8 SPC Nitride Bolt Carrier Group - 5165449858

Bolt Carrier Group

ToolCraft 6.8 SPC Nitride

from $159.99

Criterion Barrels barrel and Toolcraft bolt carrier group compatibility

They fit, with a catch

The Criterion 16" Hybrid Contour works with the ToolCraft 6.8 SPC Nitride, with one thing to check: Bolt Carrier Group (6.8 SPC II) has a 6.8 SPC / .224 Valkyrie bolt; a .223 Wylde build needs a 5.56 / .223 bolt.

This exact setup has been built more than once on GunPartPicker.

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 Toolcraft 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 16" Hybrid Contour

Share of builds with the Criterion 16" Hybrid Contour and any bolt carrier group

Barrels builders put under the ToolCraft 6.8 SPC Nitride

Share of builds with the ToolCraft 6.8 SPC Nitride and any barrel

  • Criterion 16" Hybrid Contour

    Of barrel picks
    0.2%
    Median paid
    $289

  • ToolCraft 6.8 SPC Nitride

    Of bolt carrier group picks
    0.1%
    Median paid
    $160
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 Toolcraft bolt carrier group

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

Upper Receiver

Trigger

Charging Handle

Stock & Brace

Muzzle Device

Handguard

Lower Receiver

Gas Block

Pistol Grip

Optic

Light

Criterion 16" Hybrid Contour vs ToolCraft 6.8 SPC Nitride: specs and prices

Criterion 16" Hybrid ContourToolCraft 6.8 SPC Nitride
Best price$313.49 at Brownells$159.99 at Palmetto State Armory
Stores1 of 3 in stock1 of 1 in stock
Caliber.223 Wylden/a
Gas SystemMid-Lengthn/a
Length16n/a
Twist1:8n/a
ContourM4n/a
Thread1/2x28n/a
Cartridgen/a5.56 NATO
Finishn/aNitride
Weight2.02n/a

Both for $473.48 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 16" Hybrid Contour

ToolCraft 6.8 SPC Nitride

Price history, last 90 days

  • Criterion 16" Hybrid Contour: lowest $283.99 on Jul 5, highest $313.49 on Jul 6 over the last 90 days.
  • ToolCraft 6.8 SPC Nitride: lowest $159.99 on Jul 5, highest $179.99 on Jul 16 over the last 90 days.

Bolt Carrier Groups frequently paired with the Criterion 16" Hybrid Contour

Most picked next to it in real builds. Only parts our rules say fit the Criterion 16" Hybrid Contour are listed.

Barrels frequently paired with the ToolCraft 6.8 SPC Nitride

Most picked next to it in real builds. Only parts our rules say fit the ToolCraft 6.8 SPC Nitride are listed.