NO Don't shoot 5.56 cal out of the MR1. I was told by Benelli that they will VOID the warenty if you use 5.56 Nato and the barrel blows up. Pass the word on this big misleading advertisement.
Does anyone know what exact large capacity mag these take?
I have a 30 rd Pmag and it doesn't fit right.
I have read these rifles are a pain when it comes to mags.