I rolled my IB pulse rifle and the best I was able to get was one with
Red dot oas
Rodeo
Braced frame or snapshot
Counter balance
Three stability perks is probably over kill but it shoots well. Tested on patrol and hardly any recoil at all. Thoughts, different rolls. I have a second to experiment with. So any info will help.
Edit: seems to be nothing special. Roll it like you would any high rof low impact pulse. Nothing to learn plain and simple.
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Best roll you can get Perk column1: 1 weapon part Perk column2: 1 weapon part 1 weapon part 1 weapon part Perk column 3: Mote of light