The T/C tang peep sight fits on the tang. You pull the two screws that hold the tang to the stock and those in turn hold the rear peep sight. I have one of them T/C tang peep sights. They will increase you accuracy, especially at longer ranges.

There are lots of front sights out there you can purchase. That front sight is on a dovetail.

And the bore buttons can make a big difference in accuracy with some bullets. Especially at long ranges.