I've found a list for the armament for RNAS aircraft in France and Flanders dated September 1914:
Rifles with incendiary bullets;
Hales 20lb bombs;
Hales rifle grenades;
Hales grenades;
Lewis and Maxim guns.

This seems to be more comprehensive than RFC armaments of the time.

I think the primary role for the RFC in the early stages was aerial observation for the Artilliery, RNAS was more of an defensive force at sea hence, incendiary bullets Zepplins for the attacking of.

Thanks for your suggestion. I disagree that the RNAS were either primarily a defensive force or confined to the sea. They actually had more land based aircraft; in addition to the Eastchurch Squadron (as it was initially known) in France and Flanders, they also had bases aroun the UK. They were concerned with home defence, but when it came to Zeppelins their doctrine was one of attack is the best form of defence. Hense the attacks on Zeppelin sheds, including within Germany in several raids in 1914.