Spare Parts/Weapons: Where to get besides GSAM?

[Eat68]

Pretty much what it says in the title.
Anyone know where else to get spare parts other than Gundam Store and More?
I need to get a Zaku F2 120mm Machine Gun for the Zeon Zaku F2 because it doesn't have one (going for close to the Bitter Unit) and I need the custom hand for the 120mm.

Thanks

[shishio74]

Hobby Link Japan is pretty much the only dedicated hobby store that still has a spare parts ordering program. I'm sure Bandai is supported.

http://www.hlj.com/helpcenter/partssupport.html

Rainbow Ten used to have a parts order system, but has sense ceased about 3 years ago. I believe they will order Tamiya parts only.