Can you get an automatic?

It is possible, but almost always illegal except under very rigid regulations. And it is not a simple matter of dropping in or filing down parts (contrary to what the movies would have you believe)....

because it contain a magnifying glass....

What do you want to know?

there is no such thing as a automatic licence, but there is a regular licence.

Yes, it's a fully automatic version of a M16A2, which has only semi and 3 shot burst modes after some people realised that full auto wasted ammo, but can be much more helpful if there are many...