Nope, my Dremel made quick work of that and I don't regret it. If I ever did want to change back I could always use a clamp on retainer for a Saiga. But I don't see that happening. Speaking of Saigas, it looks like I could make one work for my Saiga .308. a little trimming with the Dremel, hog out the barrel clamps a bit, and some longer clamp screws and I can finally ditch that crapco thing.
Of course they would come out with that right after I buy the Maglpul handguard. Oh well, it's probably heavier that the Zhukov anyway, which already adds a significant amount of weight to the gun.
EDIT: wow, it's actually 2 OZ lighter but twice as expensive.