I seem to have received the wrong adaptor. I was able to make it work by using a Dremel to shave down the tabs on the barrel, and using a combo of duct tape and Teflon tape on the end I put inside of the breach. It is stable and works well, seeing the other review I am guessing that is the what it is supposed to look like. I use the shotgun barrel as seen in the image and was surprised to find that the spread got tighter when I put the stronger spring in the blaster. I can alter the spread through what darts are used, however it will not get as wide as it would with the stock spring.
I have a 2nd fate and wish to do this mod again, however I want to make sure I get the adaptor that is specifically for the fate. If I leave the 2nd fate with the stock spring than I can use them both and whenever I go to shoot, I have more variability in spread just at the cost of the range and speed of the dart.
To all other customers make sure you know what the product is like instead of impulse buying like me. I heard about this choose to purchase this of the frantz foam as I wouldn't have used each of the barrels and ammo types. I just want to have the fate as a shotgun pistol, so paying for the other barrels was not to my liking.
The adapter fit perfectly in the notches inside the shell and does not even wiggle once installed. This piece replaces the whole front barrel and breech, it is not a barrel insert. The breech is eliminated but it can front load an elite or up to 3 half lengths. Mine fires 2 half's on the second shot. Depending on color choice there is not much orange left. It is so much fun to fire anything I find.