Colt M16 Early Receiver Extension / Buffer Tube, No Wrench Flats, w/ Hole & Rear Lower Receiver Stub Assembly *Good*

Colt M16 Early Receiver Extension / Buffer Tube, No Wrench Flats, w/ Hole & Rear Lower Receiver Stub Assembly in *Good* Condition

Sold Individually.

Restore your Colt 601 with this original receiver extension!
These are the original early style buffer tubes with the hole drilled instead of wrench flats.
Non-adjustable buffer tube / receiver extension, commonly used on the 601, 602, 603, and XM16E1 rifles.
This part is made to the military specification.
Threads may be marred from the old type retaining pin.
May show signs of wear, marring, grime, marred threads, etc...