[Last Edit: 11/2/2013 12:52:51 PM EDT by landman303]
This is a take off from a pre-ban 1989 Oly arms rifle. The upper receiver is an A1 with tear drop FA, standard A1 flip aperature sight and newer dust door. It does not have M4 cuts. Forge code is P (all sorts of info on the web and on this site as to what that stands for) M Martin Marietta. The bolt carrier is a Full Auto SE (Smith Enterprises ?) The bolt is MPC marked. The charging handle is, I believe, Colt and has maybe been sprayed light gray. The Delta ring is not as purple in person. Standard carbine HG's with no shields. Standard FSB with lug, swivel, and round sight post. The barrel is 11.5" with pinned 5.5" flash hider. Marked 5.56. Bore is clean brite and shiny with excellent rifling. Probably an 8 or 9 twist. Overall in VG++ condition, as the pics show. $475, professionally packaged shipped and insured. USPSMO or Certified funds.
I own a pair of Shelties. Their bark is worse than their bite. I own a pair of Glocks. They don't have that problem.