Does the Colt M4 Commando 5.56mm Semi-Auto work with the Geissele Automatics 14.5" Super Duty?

Colt M4 Commando 5.56mm Semi-Auto Lower Receiver Assembly With "LE" Prefix

Lower Receiver

Colt M4 Commando 5.56mm Semi-Auto

from $449.99

Geissele Automatics Llc Ar-15 14.5" Super Duty Stripped Upper Receiver Black

Upper Receiver

Geissele Automatics 14.5" Super Duty Stripped

from $970.00

Colt lower and Geissele upper compatibility

Yes, they fit

The Colt M4 Commando 5.56mm Semi-Auto works with the Geissele Automatics 14.5" Super Duty Stripped. 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 Colt lower and Geissele upper

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

Upper Receivers builders put on the Colt M4 Commando 5.56mm Semi-Auto

Share of builds with the Colt M4 Commando 5.56mm Semi-Auto and any upper

Lower Receivers builders put under the Geissele Automatics 14.5" Super Duty

Share of builds with the Geissele Automatics 14.5" Super Duty and any lower

  • Colt M4 Commando 5.56mm Semi-Auto

    Of lower picks
    0.7%
    Median paid
    $450

  • Geissele Automatics 14.5" Super Duty

    Of upper picks
    0.1%
    Median paid
    $970
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 Colt lower and Geissele upper

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

Trigger

Optic

Stock & Brace

Charging Handle

Bolt Carrier Group

Suppressor

Colt M4 Commando 5.56mm vs Geissele Automatics 14.5": specs and prices

Colt M4 Commando 5.56mmGeissele Automatics 14.5"
Best price$449.99 at Palmetto State Armory$970.00 at Brownells
Stores0 of 1 in stock0 of 3 in stock
AssemblyCompleteStripped
PlatformAR-15AR-15
Caliber5.56 NATO5.56 NATO
Gas System Lengthn/aMid-Length
Lengthn/a14.5

Both for $1419.99 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.

Colt M4 Commando 5.56mm Semi-Auto

  • Palmetto State Armoryout of stock$449.99

Geissele Automatics 14.5" Super Duty Stripped

Price history, last 90 days

  • Colt M4 Commando 5.56mm Semi-Auto: lowest $449.99 on Aug 24, highest $449.99 on Aug 24 over the last 90 days.
  • Geissele Automatics 14.5" Super Duty: lowest $970.00 on Aug 30, highest $1025.00 on Jul 12 over the last 90 days.

Upper Receivers frequently paired with the Colt M4 Commando 5.56mm Semi-Auto

Most picked next to it in real builds. Only parts our rules say fit the Colt M4 Commando 5.56mm Semi-Auto are listed.

Lower Receivers frequently paired with the Geissele Automatics 14.5" Super Duty

Most picked next to it in real builds. Only parts our rules say fit the Geissele Automatics 14.5" Super Duty are listed.