TA01 ACOG with TA51 mount I have a slightly used TA01 Acog with around 100 rounds used with it. I bought the TA51 mount separately. It comes with everything including the original A2 mounting bolt. Both were purchased from my local FFL. The born on date is around September 2017 because I called Trijicon and asked. https://www.trijicon.com/na_en/products/product3.php?pid=TA01 $650 shipped / insured Happy holidays and thanks for looking.