I’m completely new to the Glock world . I decided to build a custom 17 instead of buying a stock 17 . I’m having a hard time finding a barrel . A lot of people say that barrels don’t make a difference and that one company produces almost 80 percent of the barrels on the market . All they do is stamp their name and add different coatings . I called a few shops and it seems that some of them are bias towards products . Others even say it’s all about looks. I hope someone here can lead me to a good barrel . The brands I have been looking at are true precision, killer innovations, blacklist , s3f , and Faxon .