inverting axis y on a knife model

[tarsisd2]

how do i change the knife model from the right hand to the left hand like in the picture, do i need to decompile the model? and where would i change it? i want to do this on the mdl file not on the server, please

 

[fl0wer]

tarsisd2, https://gamebanana.com/tools/4907

 

[tarsisd2]

tarsisd2, https://gamebanana.com/tools/4907

it worked, thanks very much