Be careful about ambi mag releases - Geissele Maritime Bolt Catch

I have two of these on two different lowers and they're great, but you have to be careful about which ambi mag release you use. If you get one that sits close to flush like a right handed release, you'll be fine. If you get something with a lever on it like the Leapers ambi release, then they'll run into each other and the bolt catch won't work.