There are several bow shops in your area and I am sure you will find one that still has the old type of fixed pin sight... or for about a 20 dollar bill get a 3 pin sight that has the fiber optic type sight pins..that will work well for him. NOw again if he is going to use sights he sure than had better also set the bow up with a raised arrow rest and make sure he hold the bow straight up and with no kant to the bow, and must make sure he comes to the same draw point ( full extention) and solid ancor. You had in town a great archery club, I would suggest he check it out, go to the goggle search and check out VBA clubs under NFAA VA....should be about 3 clubs within a 1/2 hour drive i.e. cub run manassas, winchester archers and also front royal archers...let us know how you make out...
signed BIll a old 66 red neck from Manassas now living in the big woods of upstate NY....