One piece hopup unit in a plastic body

Discussion in 'Gun Building, Modifications & Repairs' started by ahood76, Nov 16, 2012.

  1. ahood76

    ahood76 New Member

    I'm trying to install a madbull ultimate hopup unit into my echo 1 troy. It originally comes with a plastic two piece hop up. I know I have to dremel out some plastic and it seems simple enough but I'm just wondering if that's all I need to do. And if so do I remove all of the plastic that the original hopup was mounted in?

    Attached Files:

  2. dylan484

    dylan484 New Member

    I've never actually done this but I'd in screw the original plastic piece, instal the hop up on my IB and put the gun back together to see where the hop will hit at ad remove what ever it hits on and keep doing that till it fits