Compared to these guns the BT omega is very similar. The BT Omega is basically the BT version of the Tippmann Alpha Black. The insides of these Guns are also very similar to eachother. But the accuracy of the BT Omega is better then the accruacy of the Project Salvo but again it's pretty simalar to the Alpha Black.
I haven't bought any attchments for my BT omega but I did sand a bit of the barrel down to fit a homemade sling.
The Body includes a M16 barrel shroud, A carry handle and a clip. The marker is heaver then most markers, but that doesn't matter much with it's great accuracy, durability and great looks. The body is pretty cool because it looks like an M16. It is compattable with a BT rip Clip and it has a rugged barrel shroud. Altho, the BT omega is not very upgradeable But with it's included features you might not have to upgrade it much.
I recamend this gun to beginners and experienced players alike.