SAWgunner87
Tango Down
Thinking about building an AR in 300 AAC BLK. Anyone with experience with this round, input and opinions would be awesome. Thanks
I'm about to start building a 300 blk ar. There's a lot of info on the round at ar15.com. The round was designed so that only the barrel needed to be changes to fire in the ar 556 configuration, so it uses the same bcg as 556. The round was also designed to be shot suppressed, from what I've read there seems to be some problems with a longer barrel over 14". From my understanding you need to have a selector gas block when firing subsonic rounds unsurpressed or vis versa. I didn't read much on that because my build is a sbr.
Yes. You can use the same mags too but only loaded with 20 rds because of the extra weight