You can put the pins in any order colorwise that you want but as MrFritz said you'll have to keep them in there specific groove to keep them on the same plane, I did just that on my 5 pin because I thought the yellow was brighter than the rest. Depends on which model you get as far as pin size but you can order them seperately. I know Cabelas has them. IMO you won't regret buying a Copper John sight.