NUBM0G Diodes come with a G-Ball lens. You'll never get a good result when using them directly with the standard lens like G-2. To get a quite usable beam a G-Ball lens adapter from barnett unlimited is needed. Combining the G-Ball lens adapter with a G-7 lens gives a beam with an acceptable...
The easiest way to get a good result is looking for a good shop for the additional items you need. On dtrslasershop.com you'll find all the stuff you need. He sells bundles with driver and module mounted ready to go. When a good (but not too nice looking) laser host is needed, have a look at...