Interesting. My Condor SS has no such piece. There's a set screw entering the bottom of the barrel shroud about 4.83" from the muzzle end of the shroud (not counting the cap) that holds the baffles ahead of the barrel.
Seems like the spacer in the photo would rely on where the forward bushing on the barrel is located. On my original barrel that's 6.625" from the muzzle of the barrel. The pictured spacer seems much shorter.
I don't really recall, but my Condor is probably circa 2014. Under-rated platform, imo. They're great guns, especially with a little help from Talon Tunes. Mine was so awesome that it has cost me thousands in other PCP goodness.
GsT