Fast draw security holster

A method of manufacturing a holster, comprising:

• a holster body with an open “U” shape and or having one or multiple spring loaded self-closing doors/flaps that extend across any appropriate portion of the front and/or rear of the holster, allowing enclosure of the handgun, wherein one or multiple spring loaded self-closing doors/flaps open upon forward, rearward, or other motion from the user after the thumb/finger engaging lever or button has been retracted by means of unlocking the handgun and closed after the gun has been drawn, returning back to its original holstering body state, wherein the shoulder and chest-fitted versions of the holster have an open “U” shape body or have one or multiple spring loaded self-closing flaps or doors connected to the holster underneath the barrel of the firearm and/or underneath the trigger guard to allow a downward and or backwards draw, wherein the spring loaded thumb/finger engaging lever or button is attached to the holster between the user and the holster on the inner side wall, where it would be mounted to the wearer and/or on the outer side of the holster where it can be engaged by the users finger, and wherein holster also includes a finger guard/cover which can be made of any appropriate material in any size or shape such that it encloses the finger engaging spring loaded lever/button, thereby obstructing observation of the action of engaging the finger engaging spring loaded lever/button.