What techno-magic weapons would a tiny dragon use?
Several questions jump to mind before an answer can really be given. What level is the character, and what resources does said character have? Is your hatchling days out of the egg or years out of the egg? Also, unless dragons have changed: does the character actually need to be in dragon form to use it or can said character transform into a bipedal form for use (and therefore needs to be more concerned about carrying it)?
Though it's been a decade or so since I've played a hatchling, the easiest approach that I've found is to use the same equipment as everyone else (perhaps modified for easier use) and rely on magic as a fallback. Remember that most magic has a severely limited range (usually in the 100 foot range if memory serves), while even an ordinary MDC laser pistol can be more "useful" in combat.
Edit: Two additional thoughts occurred. At size tiny, a hatchling can easily be carried by someone else and/or ride in a cockpit. Also, if you really intend to be magic heavy, you should consider a PPE battery; as you can never really have enough ammunition.
This message was last edited by the user at 18:44, Fri 01 Nov 2019.