I’ve got an older knight disc extreme .45 been a terrific gun for me and their customer service is second to none, after some 15+ years owning it I had a bolt issue ended up sending it back to them they put in a new style bolt did a trigger job cleaned and refinished the barrel and put a new breach plug in it all at no cost to me you can’t beat that
I have one of the old style Disc rifles and it is a fantastic shooter.