Welcome aboard Magda... I'm 5.56x45mm. The resident firearm expert and all around Conservative Capitalist American. Also I piss off Anti-War Hippies, Democrats, Hillary Clinton Supporters, Socialists/Communists, Anti-Gun Folk, and lastly the Chi-Coms* for reasons that are beyond my control.
Word of advice.... Don't worry about the smell. You'll get used to it.
*Chi-Com = Chinese Communist, the People's Republic of China.