Actually, sort of. It's the magazine of an M6C/M6C SOCOM/M6G of my own design. It's basically the base pistol with interchangable parts to make it either an M6C (Halo 2), an M6C SOCOM (Halo 3: ODST) or an M6G (Halo 3). I'm in the final stages of pepping now and it's coming out pretty nice. Tough to pep, though. Here's a sneak peek...
Glad the pics helped some, waiting to see more.