I dont think there is a manual, but there is tons of info on ths forum if you search it. There are a couple upgrades for these gun that make a great difference. I personally shoot 90 grains of bh 209 a 240 hornady xtp and a harvestor green crush rib sabot. The bh209 will not work well with out the alternative igntion system. Look through the threads and you will get all the info you need.