Predator1- the Knight T-Bolt is a high quality excellent rifle. I purchased one 2 yrs. ago for my son who is now 17 yrs. old. He has taken several deer and Russian boar with his T-bolt, the most recent being a 12-pt. trophy buck he downed on Thanksgiving morning. My son's rifle has the 209 primer conversion kit and uses the 209 shotgun primers. I also have a MK-85 and you will find the same Knight high quality in the T-Bolt rifle as you have in the MK-85. You will not be sorry if you get him a T-Bolt. Knight has discontinued several of their models including both the T-Bolt and the MK-85 and it is not because of any problems with them. My son has never had a problem with his T-Bolt other that me trying to borrow it on occasion from him.