Patent ID: 8516735
Filing Date: 2013-08-27
Classification: F41G

Abstract:
1. An adjustment mechanism for a firearm scope, the firearm scope having a zoom ring, said firearm scope adapted to be mounted to a firearm and the firearm having a trigger and trigger hand thumb rest area, said adjustment mechanism comprising: a) a substantially cylindrical body having a longitudinal axis extending between opposite proximal and distal ends, said distal end configured to be attached to said rifle scope zoom ring in rotationally fixed relation thereto such that rotation of said cylindrical body about its longitudinal axis causes rotation of said zoom ring, said proximal end extending in covering relation to an ocular housing of said scope to a position adjacent said trigger hand thumb rest area of said firearm when said firearm scope is mounted to said firearm; and b) a plurality of thumb engagement features formed on and annularly spaced about said cylindrical body, said spacing being such that at least one of said thumb engagement features is located within reach of a user's trigger thumb when the user's trigger hand is holding the firearm with the user's index finger on the trigger and regardless of the rotational starting point of said cylindrical body with respect to said firearm; wherein a force applied solely by the trigger hand thumb against said at least one thumb engagement features provides sufficient force to rotate said adjustment mechanism, and thus also said zoom ring, without requiring removal of the user's trigger index finger from said trigger.