Does the Luth-AR A2 Stripped work with the Colt M4CQB Replacement 10.3in?

Luth-AR A2 Stripped AR-15 Upper Receiver

Upper Receiver

Luth-AR A2 Stripped

from $103.35

Colt M4cqb Replacement Barrel Assembly 10.3in

Barrel

Colt M4CQB Replacement 10.3in

from $294.29

Luth-AR upper and Colt barrel compatibility

Yes, they fit

The Luth-AR A2 Stripped works with the Colt M4CQB Replacement 10.3in. 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 Luth-AR upper and Colt barrel

Backed by thousands of qualified builds that have both an upper and a barrel.

Barrels builders put on the Luth-AR A2 Stripped

Share of builds with the Luth-AR A2 Stripped and any barrel

Upper Receivers builders put under the Colt M4CQB Replacement 10.3in

Share of builds with the Colt M4CQB Replacement 10.3in and any upper

  • Luth-AR A2 Stripped

    Of upper picks
    0.1%
    Median paid
    $94

  • Colt M4CQB Replacement 10.3in

    Of barrel picks
    0.1%
    Median paid
    $293
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 Luth-AR upper and Colt barrel

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

Lower Receiver

Bolt Carrier Group

Pistol Grip

Handguard

Stock & Brace

Trigger

Light

Charging Handle

Suppressor

Muzzle Device

Luth-AR A2 Stripped vs Colt M4CQB Replacement 10.3in: specs and prices

Luth-AR A2 StrippedColt M4CQB Replacement
Best price$103.35 at Brownells$299.99 at Brownells
Stores4 of 6 in stock1 of 4 in stock
AssemblyStrippedn/a
PlatformAR-15n/a
Receiver TypeA2n/a
Calibern/a5.56 NATO
Gas Systemn/aCarbine
Lengthn/a10.3
Twistn/a1:7
Contourn/aGovernment
Threadn/a1/2x28

Both for $403.34 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.

Luth-AR A2 Stripped

Colt M4CQB Replacement 10.3in

Price history, last 90 days

  • Luth-AR A2 Stripped: lowest $103.35 on Jul 5, highest $108.05 on Jul 21 over the last 90 days.
  • Colt M4CQB Replacement 10.3in: lowest $280.79 on Aug 13, highest $299.99 on Jul 6 over the last 90 days.

Barrels frequently paired with the Luth-AR A2 Stripped

Most picked next to it in real builds. Only parts our rules say fit the Luth-AR A2 Stripped are listed.

Upper Receivers frequently paired with the Colt M4CQB Replacement 10.3in

Most picked next to it in real builds. Only parts our rules say fit the Colt M4CQB Replacement 10.3in are listed.