Does anyone know all the oring sizes for a huma air regulator on an AGT Uragan, not a uragan 2, the original Uragan? I lost all my spare parts, orings, paperwork, etc.. for my PCP rifles in a barn fire a few months ago, and of course enough orings to rebuild my regs dozens and dozens of times along with the lists of sizes. My Uragan just this week started hitting low on first shot, took me two missed squirrels to figure it out. Reg just this week started creeping fairly fast, 5 minutes of it sitting is dropping first shot roughly 3 inches at 30 yards, an hour of rifle sitting drops almost another 1.5 inches on top of that and stays there no matter how long it sits, at least at current 200- bar in bottle. If left for an hour+ it takes two shots to get the plenum back down to shooting tight groups where zeroed.