Doesn't appear that we are able to redo verses, so what happens if you dismantle the gun? Is it gone forever? Does the verse become available again to redo? I personally think that once a gun is obtained on one character, it should be unlocked for all (given that all characters can earn the mats that progress a single verse), and that once unlocked Brother Vance should sell duplicates the same way Devrim sells the MIDA mini tool. Also, now that each verse has become available at least once, I think now would be a good time to ditch the "per week" aspect of it and just allow people to grind through them all at their own pace.