What type flash hider needs to be timed? All I've seen (including the two I've installed- and the one in the pic above) do not require timing like a brake does.
I guess if you want to set the ports at 90 degrees, but none of that affects performance.
Mosin-Nagant Custom Shop/Bent Bolts
Gun-Kote/ Cerakote Refinishing
Criterion Barrels/ Savage Re-Barreling