Could you have a picatinny rail mounted on the supressor tube and a red dot?
I know is would not look like a real one, but you could get it to shot to POA.
6.5 years reminds me of a story Ronald Regan once told about the USSR, it took about ten years to buy a car.
This Russian man had gotten the paper work and went to the dealer, paid the money and was told come back in ten years, he said morning or afternoon?
The dealer said what difference does it make after ten years?
the Russian man said, the plumber is coming in the morning!