So... i installed a geissele ssp with old bolt...racked the bolt and held the trigger. Would not reset when released. I installed a new anagstd arms hybrid bolt...does the same thing. Can't fire til tomorrow but does not look promising. Not sure what the issue can be. I have built ( and own) 30+ rifles and have not had one give me fits like this. Sent from my SM-G955U1 using Tapatalk