The Energon Pub

I saw these bling bags in my local Debenhams but I had no idea what they were. They also look like Arms Microns but again I'm not sure, anyone know what these are?

So, you were on the money about the microns, or more specifically the Gacha portion of the AMs.
http://tfwiki.net/wiki/Arms_Micron#Gacha_Arms_Microns
It looks like you have vol. 2 blind bags from 8/ 12; looks like they have been hanging around a bit.

But in truth, i loved all of these AMs enough to keep them in my collection even as i start to thin out my Prime collection.
The Gacha versions are a bit cheaper than the regular releases but they all have character specific pieces to enhance your collection of Prime figures.
I also have the majority of the non store exclusive AMs and really enjoyed assembly and sticking them up.

Bare minimum, you have some nice weapon add ons for other figures that should be a very good price compared to other independently sold weapon upgrades.
Enjoy and good luck!
http://tfwiki.net/wiki/Arms_Micron