M16 rifle with 40mm grenade launcher attached.
"The 203 is a soldier's best freiend."
by Diego July 29, 2003
Get a 203 mug for your father-in-law Vivek.
The m-16 carbine with grenade launcher attachment Scarface uses in his movies, also an "urban solja"'s weapon. This is why all those rappers have scarface playing in their house.
Say hello to mah lil' friend!
by Konduct April 08, 2004
Get a 203 mug for your guy Vivek.
M203

The 40mm projectile launcher that can be mounted to the bottom of a rifle. Commonly seen as a grenade launcher on M16/M4 style military weapons, and has its own stand-alone trigger/hammer.
Jimmy Joe just nailed that Iraqi van with his 203.
by M4ownsYou January 17, 2006
Get a 203 mug for your boyfriend Abdul.
Your friend and sometimes your worst nightmare in the game "America's Army" The 40mm grenade launcher mounted under the popular M16.
HAHA! That stupid arab newb got pegged by my 203!
by Doraemon1210 April 25, 2005
Get a 203 mug for your friend Paul.
M16 rifle with 40mm grenade launcher attatched. used by the sas. i dont know if its used by other reginements or counntrys.
i stuck a new mag in my 203.
by moggybiter May 04, 2009
Get a 203 mug for your mother-in-law Nathalie.
Foyer 203 is a year 8 group in International School of Montreal. Foyer 203 (2018-2019) was the greatest group that anyone could ever had.
Foyer 203 has a strong bond that nobody can break
Foyer 203 (2018-2019) will never fall apart
Foyer 203 is the best
by j'ai_la_flm_ August 02, 2019
Get a Foyer 203 mug for your dog Manley.