nikvanorton
Member Extraordinaire
the Umarex T4E pistol size markers with 7.5J are perfectly legal with frangible ammo. In contrary to that the 11J version wasn't in its form factor. The T4E HDX 68 with up to 16J however is as it is of rifle class ... I admit there is a lot of explanation to it to be on the right side of the law with those.
The 7.5J pistol/16J rifle models are legal full stop, with frangible or rubber ammo. Whether they are airguns or paintball markers they are still below the legal limit.