small problem need help

i tryed to make a custom m9 (default knive) and i used the sickle to start and i made this sorry couldnt get normal pic
http://bl00dlegion.*********/apps/ph...49006&pcount=1
but when i play the m9 looks the same
can any1 help me fix this?

You need to edit .ltb files!

thanks alot ill do this

what program do i use to edit these? thanks alot for helpin me