Barrel lock assembly for a gun

Claim 1

A barrel lock for a gun comprising: a first lock portion comprising: a tumbler including a key end through which a key is insertable and an actuating end; a pawl means including a pawl actuatable by said actuating end and two upright fingers opposed to each other on said pawl; a screw means actuatable by said pawl means including an upstanding screw and a base including two opposite peripheral cut-outs along which said fingers are slidable; a sleeve, having said tumbler fixed thereto and enclosing said tumbler, said pawl means and said screw means, including an annular groove formed on an inner periphery thereof, a means for preventing a relative rotation between said barrel lock and a barrel of a gun, and an anchoring neck formed on an end thereof; two semi-circular anchoring means mounted on said anchoring neck; and a flexible means enclosing said anchoring means and allowing an expansion of said anchoring means and restraining a relative longitudinal movement between said anchoring neck and said anchoring means, and a second lock portion comprising: an apertured cylinder including threading axially extending a portion of a length therein engageable with said screw; a neck for pushing said anchoring means outward when said screw and said thread are engaged in a condition where a distance between said first lock and said second lock is shortest, holes formed therein; and a head axially attached thereto for preventing a relative rotation of said first lock and said second lock when engaged with each other; a securing means for retaining said cylinder engaged with said sleeve; an apertured collar including holes corresponding to a hole of said cylinder; a plurality of pins each being insertable through each said hole on said collar and said corresponding hole of said cylinder; and a column including a first end for resisting an external impact, a middle portion for pushing said pins outward when an impact is exerted on said first end of said column, and a second end for retaining said pins within said cylinder.