Sorry for the long reply time - I ended up busier than I expected!
I've filled out the pricing for the ammunition that this weapon will fire, but the pricing for the main item here, the launcher, is still something I'm not sure about myself. I'm thinking 8,000 KS perhaps, but again, I'm uncertain as to how to price this, since I don't know of any analog to this to compare to. After the main price of the weapon however, the rest of the parts should be easy.
Aside from the pricing problem, are there any other concerns to address?