Geissele Super Duty Mod 1 Issue
Hey all. Been waiting on a restock of the SD uppers and got a notification finally. Ordered an 11.5 upper and dropped it off at LGS for muzzle device install and alignment check. LGS called me to come in stating that their alignment rod would not make it down the barrel either coming from breech or bore. Originally they thought it was the MD (Comstock Plan B brake) but they tested it bare muzzle and had the same issue. Odd. I took the upper home and cleaned it well.
Took it to another LGS for re-check/second opinion. Same issue there also. Bare muzzle. Very strange. I’ve opened a ticket with Geissele to start the RMA process. Just putting it out there so that others who are getting their orders filled after this recent restock to check their barrel concentricity even if you’re not planning on running a can.
I attached a somewhat crappy pic down the barrel. The carbon from factory test fire can be seen.