value of taurus 1911AR

any idea what the value of my taurus would be? Purchased 4 mos ago. Cost $600.00 but I was told its the model which would be the same as if you had $1200.00 in custom modifications made. 100 rounds of ammo thru it. Original carry case,all attachments, manual,registration card and cleaning tools(EVERYTHING THAT CAME WITH THE GUN IN THE CASE). Not a scatch or defect on the gun. I want to sell it but have no idea of price.

I just bought one just like yours for $500.
That was an OK price, but no steal.