M4/M203 Tactical Slings?

[Kuri]

Hello, first of all I would like to introduce myself. I'm an active duty MP stationed in Korea but headed to Iraq in November. I'm new to the board and I don't intend to post much because most of the time my questions have already been answered and I'm not a BTDT yet...But since time is of the essence and I have been unable to find a definitive answer, I'll ask around here. I need to obtain a tactical sling for my M4/M203. All of the websites that I've found make them for M4s or fixed stock M16/M203s. So will I be able to use a standard M4 sling for my weapon or not? I've searched the archives of this forum and many others because I know how much you gentlemen hate newbies asking questions without doing their own research first. Thanks in advance for any info. you can provide.