Best 16-inch carbine length 300 blackout barrel ever !! - Faxon Firearms 300 Flame Fluted Rifle Barrel

This was my first 300 Blackout build to make a long story short I did a lot of research on the 300 Blackout and found out that most people have trouble cycling subsonic ammo with a 16 in Barrel carbine length gas system and the fact is yes you can use a nickel boron bolt carrier yes use a light buffer and buffer spring this will all help but the main thing to get a 16 inch barrel with a carbine length gas system two-cycle 220 grain subsonic ammo is the size of the gas port hole on the barrel and what I found was that the Faxon Firearms flame fluted 300 Blackout Barrel offers the biggest gas porthole at .125 so I completed my build took my new rifle to the range the other day and it's cycled 100 rounds flawlessly without one malfunction using 220 grain ammo without a suppressor this Barrel is magnificent I will be purchasing another one soon for my next build thanks to opticsplanet.