Well, Snapshot is just the book 2 combat system with a 1.5 meter movement grid and action points to allow you to play out boarding actions (or bar room brawls). If you just used range bands, your left with the book 2 to hit system.
Like I said, I've never owned AHL, so I don't know how it's range system is set up.
Striker changes the basic to hit system, by making it a basic 8+ to hit at effective range (like book 2) but effective range is different for each weapon system (Long range is 10+ to hit, and extreem is 12+).
If you want use the Striker to hit system with range bands, then you can use the MT weapons tables, as they return to the range band mechanism (sort of), but it has some other quirks that some people don't like (I've never used it, so I can't really comment on them).