Top definition
A premier calibur invented by FN (Fabrique Nationale) for two of their premier firearms : the Five-seveN and P90.
It is compact, yet powerful like a rifle round (able to pierce armor).
5.7x28mm is also illegal for citizens to possess because of its armor-piercing capabilities.
by Dave February 01, 2004
Get the mug
Get a 5.7x28mm mug for your father-in-law Abdul.
Oct 27 Word of the Day
The time between Christ’s birth and the beginning of the coronavirus.
In late 2016 AD or 3 B.C.V., Donald Trump was elected as the 45th President of the United States of America.
by JDS12 March 27, 2020
Get the merch
Get the B.C.V. neck gaiter and mug.