First, weapons slot devices, powerful buff devices that appear on your ship. Essentially they're weapons that don't fire, only provide buffs and or activated skills to your ship. Example would be a spinning radar disk that significantly increases scan range, thus turning your ship into a scout. Or even a cloaking field generator, gives the player access to a low level cloak skill. My personal favorite idea would be a sort of weapons overloader, increases firing rate by some large amount, but makes weapons much more prone to breaking. Aside from the buff trade-offs, the cost will be a weapons slot.
Now, I want XL Ammo stacks, sell em at a company outlet store or something. Non-manufacturable, extra large stack ammo that's only sold there. I've also always wondered why weapons and equipment made by reputed companies aren't sold in shops, experimental weapons I can understand. So yea, would be nice to have an actual company station that sells most of it's products.