Not to burst your bubble, but it has already been made
00 = M203 FRAG
01 = M203 M680
02 = M203 HE
03 = Z-25x AIRBLAST
04 = GL-36 FRAG
05 = M303 LL
06 = M8-62 SHOTGUN
07 = G2-1 FRAG
08 = LIGHT SCOPE
09 = HIGH SCOPE
0A = VARIED SCOPE
0B = RED DOT SCOPE
0C = LASER SIGHT
0D = H.SUPPRESSOR
0E = LT.SUPPRESSOR
0F = BLANK
10 = THERMAL SCOPE
11 = BLANK
12 = NONE


#GMP Attachment Mod
0x005FAF04 0x000000**