Wow that took a while, went through 2 blades to cut the sleeve off. But now I have an unthreaded Saiga 762 barrel. I was going to cut AK-47 threads, M14x1 LH, but I was thinking using US threads like 1/2x28, OD is 0.55" get an adapter for 1/2 to 5/8x24 so I can use the many many muzzle brakes, hiders and suppressors. Thoughts - Pros - Cons - all will be welcome if you handle a rebuttal. Thanks All.