some explanations:

the blade: the blade isnt smooth, but a bit rough to get the extra cut when used as a sword. it's also got saw teeth on its back for toughter cutting jobs.

the handle: the handle is usually round, but if you press a button on it, will the handle shift down and it will become a rifle.

the arm-clamp: its used to stabelize the weapon when its as a rifle. it can still be used to cut like it was a sword, but it can now also fire a bullet tha can travel quite long.

ammo: a single bullet-shaped MSD(Molecular Storing Device), which have the abillity to store the molecular data of the bullet that the weapon use, and regenerate a new bullet when the last bullet is fired.

Size: it is 2 meters long as a sword, and am armlength longer as a rifle.