IM AN FORMER ARMY E-7 SOLDIER WITH 10 YEARS 4 MONTHS OF SERVICE. I LIVE IN SOUTH FLORIDA AND HAVE A CONCEALED WEAPONS CARRY LICENSE. MY QUESTION IS AS FOLLOWS. I AM INTERESTED IN PURCHASING AN M-4 CARBINE FROM COLT. ON THE COLT WEBSITE IT ALSO SELLS OR DISPLAYS THE M-4 CARBINE EQUIPED WITH THE M203 40MM GRENADE LAUNCHER. MY QUESTION IS. IT IS LEGAL FOR A CIVILAN TO PURCHASE AN M-4 CARBINE EQUIPED WITH THE M203 GRENADE LAUNCHER. AND IF SO. WHAT IS REQUIRED TO PURCHASE THIS. THE PURPOSE I AM INTERESTED IN THE M-203 IS "NOT" FOR THE EXPLOSIVE ROUNDS IT FIRES. BUT INSTEAD FOR THE BUCK SHOT AMMUNITION MADE FOR IT. SO I WOULD GREATLY APPRECIATE IT IN LAYMENS TERMS THE ANSWER TO MY QUESTION. AND IF IT IS POSSIBLE. WHERE TO OBTAIN AND WHAT FORMS ARE REQUIRED. I THANK YOU FOR YOU'RE HELP IN THIS INQUIREY. PAT EMAIL IS LTC4PAT@COMCAST.NET GOD BLESS.