Just got my Christmas present to myself. Outstanding accuracy but boy is it loud! The barrel has a weight on the front with a male 1/2 x 20 thread on the front. For such a well engineered PCP why they didn't include a decent moderator is beyond me.
When I had my Rotek I had TKO make me an LDC with a flat back so it fit flush against the muzzle weight and it looked great. If you do get an HW moderator you can always remove the muzzle weight so it doesn't look funny with the tapered end.
Also could get one of DonnyFl ldc's that is just a bit bigger than the muzzle weight diameter. Plenty of options out there.