I have yet to see any piece of UTG which I'd actually consider using. Didn't know they were making buffer tubes. With the abundance of quality products out there, not exactly running to get one.
The only two pieces of Tapco I generally recommend are their AK trigger and pistol grip. The rest, eh.
I've never said Olympics aren't accurate. Many are, however, across the board (speaking of dozens of examples) Olys tend to not be RELIABLE.
"And Shepherds we shall be. For thee, my Lord for thee. Power hath descended forth from thy hand, that our feet may swiftly carry out thy command. So we shall flow a river forth to thee and teeming with souls shall it ever be. In nomine Patris, et fili, et Spiritus Sancti. Amen."