What is responsible for Last Round Bolt Hold Open on a dedicated Glock mag? Just the mag catch like usual? Or is there something else more specialized?
I was thinking of buying a Spikes Ar9 lower just because reviews said LRBO was reliable. If it's just a matter of having a good mag catch, perhaps my options open up.
I was thinking of buying a Spikes Ar9 lower just because reviews said LRBO was reliable. If it's just a matter of having a good mag catch, perhaps my options open up.