From the looks of it seems like she is ready to be harvested!
BUT your best bet to know is to check the trichomes, usually people aim for about 15-20% amber trichomes.
Beautiful plants!! Good luck and happy harvest :)
Yes yo can go by pistols but to know more accurately you need to check trichomes. Especially when you want to get the high you want. Harvest window is about 3 weeks depending on when you harvest in this window will determine the high