It is not a rifle, it is a handgun. The barrel opens up like an old reak-open shotgun, and can be completely removed (the handgrip and trigger assembly from the barrel) for cleaning. The whole thing, assembled, is about the size of a long revolver, the length determined by the total barrel length, which can be 10" out to 20". The scope mounts to the barrel, so the whole package doesn't get any longer, just taller (imaging a pistol with a scope on it). Folding bipod legs can be mounted to the barrel, again, only affecting width not length.
Good point about the sight settings; I know shooters who are nit-picky about handling, insisting that the slightest vibration causes misalignment, and I know some who break theirs down and throw it in the case. Both types shoot far better than I can (which isn't saying much). It is possible to use a laser boresighter (a small inexpensive devise) to align the scope without firing. If the ammunition is consistent, the initial settings sould also be.
Thanks for your reply. From what I understand then, even if the weapon is folded, it wouldn't be a problem anyway with a laser boresighter. How long would it take to adjust it? A few seconds?