PugTrooper

Hello, I am doing my first stormtrooper build and I hope you dont mind if I pick your brain, but you seem to be the one to ask.  I ordered my 3-D printed armor from the armory shop and though it took 3 months to get, I finally have it.  I also ordered the SE-44C from Heston3DSolutions on Etsy as well.  

Now for the question, I have all the pieces I need to attach the blaster, any ideas on how to attach it, so that it can also be removed, here are some photos and thank you for your help.  

Jason