Mod arms help needed

[QQ80]

I added an arm on a FRF2 mod. It looks good in first person but in third person the arm sorta sticks out. Any tips? This is my first time making an arm.

BTW the FRF2 mod is made by productivecortex and the arms I copied from SIMOX's WA2000 mod.

Edit: why wont the forum allow uploading .kv6 files??
Edit:here it is: https://www.dropbox.com/s/t8gdi5qeo85cayz/semi.kv6