Hey guys I'm new to the site but not new to AR platform. I have a 300 blk upper and am wanting to build a 450 bushmaster upper. I want to build the upper from the ground up. My reasoning isn't to save money but to be able to make it mine exactly the way i want it the first time. So I have been trying to find out whose barrel I am going to buy. Right now I am looking at tromix, obsidian firearms, and franklin armory. I can't find and 450 bushmaster experience with tromix but the .458 socom guys love them so I think that'll be a safe choice. Obsidian has good reviews on their website but can't find any real world information. And franklin has good reviews but people say the rifle gas system can be finicky. What do you guys think?
Thanks
Matt