KSC G26C Tightbore Barrel
 

I'm not sure what to choose, a 6.03mm barrel? or a 6.01mm dpi barrel?
What are the cons pros of the 6.01, i always use grade A bb's

I have a PDI 6.01 in my TM G17 and have not had any issues. I've been using KSC Perfect .20s and Intruder Shop High Precision .28s and make sure the barrel's clean after each session. I don't know how the barrel would handle the G26C's full auto as I left mine stock.