Surefire MB556AR torque
Is it absolutely required to torque it down to between 20 and 30 foot-pounds? No matter what combination of shims I tried I could not get it to time quite right at the required torque. I was hoping that with the threadlocker and torque close to 20 it would be OK.
I had the same problem when I installed mine.
Instead of ripping the threads off my barrel, I went to the light side of the 20. I have had it on for 1 1/2 years with can after beta dumps and still have no problems.
I would rather you have it on the lower end but as close to 20 ft/lbs and Rocksett it than go well over 30 ft/lbs. You can cause accuracy issues with any FH or adapter by constricting the bore when you over torque.
SureFire Suppressor Division
I ended up getting it somewhere between 15 and 20 ft-lbs and applied the Rockset too.
Thanks for the replies.