I used to shoot with a RMR on my PCC.
Last time, for a unknow reason this litlle guy stop to work, and work again, and stop again...
The battery was a new one, and I wasn't in match so not a big deal and I'm going to send it back to Trijicon,.
I just mount my secon RMR, but I also had a FF3 with 8 MOA on the handguard.
1/ it's a security. If the RMR doesn't work, I have a second one to finish the match
2/ I thnik it can be a good help when you have to shoot in particular position.
What do you think guys?