honestly i own 14 holosuns and they have been great. only had one issue and it was the sight couldn't be turned off. that being said the shake awake worked fine. contact them as they will make it right for you. when i sent in my 4 year old hs 507c v-1 due to not being able to shut off i received a brand new one in a week and a half and they sent me the new v-2 to replace it. i was very satisfied.
honestly i own 14 holosuns and they have been great. only had one issue and it was the sight couldn't be turned off. that being said the shake awake worked fine. contact them as they will make it right for you. when i sent in my 4 year old hs 507c v-1 due to not being able to shut off i received a brand new one in a week and a half and they sent me the new v-2 to replace it. i was very satisfied.