Thanks for the replies folks! I think I'll leave this one without HPA (this will be my excuse to buy a QB79 with the HPA conversion already done LOL plus I can get that one in .22) as I do not feel comfortable converting it myself. Better safe than sorry, I know my abilities and this is beyond them, don't want to experience a catastrophic failure. Definitely going to get a multi shot breech kit and LDC but that will most likely be all I do to this one. How loud are these puppies? AG depot rates them as 2-low/medium but I have heard they have a little more bark than the specs say....