Hard to find brand new Colt Factory M4 Commando model lowers, complete except for stock. Its been many years since there has been a Colt factory Commando marked lower available to the general public, as a NON NFA lower. As you likely already know the Commando full auto, short barrel model variant of the M16. US Military designator XM177 or GAU-5. Few were ever registered before 1986 NFA rule change concerning machineguns for general public possession. Not to mentions, the ones that were registered bring a premium over $30,000 and require all the steps and wait times for NFA compliance. 

So now you can leave both the tens of thousands in your bank account and in its current configuration transfer usually same day over the counter like any other receiver would. 

Colt usually never sells receivers to the general public, just built firearms. These are serial pre fix LE , not really sure why Colt would let them go as receivers or what they were “suppose” to be built into.

One thing is for sure, you can have yours now.

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