Mounting Howard Leight Impact Sport ear pro to an Ops-Core helmet (ARC rails)

Hey guys,

I wasn’t sure where to put this, so apologies if it needs to be moved elsewhere.
I am looking at picking up an Ops-Core Base Jump helmet, and have a spare set of Howard Leight Impact Sport ear pro.
Since I am not an elite operator (yet, that is, hehehe - OK maybe never), I do not need, or rather, I cannot afford MSA Sordins, or Peltor COMTAC,
I would like to mount the Howard Leights to the helmet though, as I really don’t want to deal with the discomfort of the headband.
I have researched attachment methods for this, but have only come up with results for the Peltors and MSA Sordins.
e.g.
http://tnvc.com/shop/sara-sordin-arc-rail-adapter-gen2/
https://www.ownthenight.com/helmets/helmet-accessories/product/6433-peltor-arc-adapters.html#.VT8iECHBzRZ
http://ironforgedconcepts.com/project/order-sara-gen-2/
http://srstactical.com/peltor-arc-adaptors-left-and-right-side-attachment-kit.html

I know that the Howard Leight Impact Sport are not the best of the best, but they are a decent set of ear pro’s, and relatively common. If anybody has insight into how to achieve this, I am all ears.