"...google you can learn many things or get an idea..."
And many of those things and ideas are fact.
Please get at least two other confirmations of your web-found "fact" before you bet much more than pocket change on it.
That said, you can get some good directions and some very well-vetted information on reliable venues like The Firing Line.
This is the best location for good and reliable information about firearms.
I'd search here (correction, I
do search here) before a general search on the web for any firearm-related information.
I usually only seek
one other confirmation for info I get off TFL
.
In short, you've come to the right place.
Will