I have for sale on unfired M4 upper. Colt 14.5" M4 profile barrel attached to Colt flat top upper receiver. I built it myself with proper tools to proper specs. It will include double heat shield handguards (lightly used) and A2 flash hider (new). All you will need to make this into a complete rifle is a bcg, charging handle, rear sight, complete lower half and either a $200 tax stamp (it’s NFA in it’s current state) or a new perm. attached flash hider to bring it +16". I built another one of these uppers at the same time and they are outstanding pieces. The Colt barrel is second to none. I’m asking $550 shipped (+4% pp or USPS MO).
My phone crapped out on me today so I would trade towards a Verizon iPhone 4s or 5.
Make an offer if you think the price is too high.