You can prestige a weapon but keep all the attachments you have equipped. How to do it is in comments

1 Comment

1. 

   x3qut 3 years ago

   How to do it:

   1. Make sure you have a class of the weapon with all the attachments you want on it, in public match

   2. Go into league play and select the weapon and then prestige it by pressing Y or triangle.

   3. The weapon will just reset in public match to level 1 but the class remains the same