All parts are still available, Destructive Customs is the only factory authorized repair facility and they are not hard to work on if you have the lpr and cartridge tool. As far as normal maintenance they just require couple of drops of oil in the asa.
__________________ TheePsycho's Feedback
Originally Posted by freebird
lube the shaft and warm the o-ring up in your hand by rubbing it back and forth between hands. then it should go on easier.