FAST-GUN, the automatic biopsy instrument is the latest reusable biopsy guns till date. FAST-GUN is built with the distinct light-weight alloys and is really much easy to use. It is light weighted and compact, user can choose from 2 throws: 10 or 20 mm. Physician does not need a nurse for assistance as the instrument can be easily cocked and specimen can be discharged or collected single handedly, while the US probe is held by the free hand. It is not required to unload the safety lock at every stroke. The instrument can be conveniently disinfected using traditional methods.