Hello fellow patriots;
I just Picked up a new M&P 15 sport II today and I'm a little confused on the 300 ACC ammo.
From all the videos I've watched they say I have to change out the barrel to fire the 300 acc blackouts. The owners manual on page 9 says I can fire the 300 blackout if i have the 5.56 NATO stamped on the barrel which it does have. Do I have to change anything at all like the flash hider or is this riffle good to go if I want to use those rounds? I will most likely use .223 or 5.56 but I like the option for the 300 if it's available. I apologize if this has been asked a bazillion times, I did a search on google and it all came up that I would have to change the barrel.
thank you,
Gary
I just Picked up a new M&P 15 sport II today and I'm a little confused on the 300 ACC ammo.
From all the videos I've watched they say I have to change out the barrel to fire the 300 acc blackouts. The owners manual on page 9 says I can fire the 300 blackout if i have the 5.56 NATO stamped on the barrel which it does have. Do I have to change anything at all like the flash hider or is this riffle good to go if I want to use those rounds? I will most likely use .223 or 5.56 but I like the option for the 300 if it's available. I apologize if this has been asked a bazillion times, I did a search on google and it all came up that I would have to change the barrel.
thank you,
Gary