Looking for ideas - Howler 3 "Devil"

[Known Glitch]

I'd like to modify one of my Howlers to resemble the Howler 3 config w an ER PPC, aka the "Howler Devil".  Anyone have any ideas for an ER PPC (or reasonable facsimile) that would fit on the shoulder?

[CranstonSnord]

Once you cut off the LRMs, maybe a Pack Hunter ERPPC? https://www.ironwindmetals.com/index.php/product-listing/product/battletech-20-934b/category_pathway-2

[Luciora]

I was just thinking about this too

[dirty harry]

Maybe the heavy large laser of a Solitaire. That gun should be a bit more beefy.

[Known Glitch]

Thanks for the ideas!  Both are better than what I was coming up with on my own.