Does anyone know if the Atomic / Ranger come with different barrel lengths for US and UK markets. I've just looked at the airguns of Arizona review of the Ranger AND BRKs own website and its clear the barrel length on BRKs website and in the AofA site is only about 15mm past the end of the air cyl (just enough for the moderator threads) But on my UK model its 65 mm longer than the air cyl ?? I'm trying to fathom out WHY and can I safely get and fit the shorter US market barrel if I want??