Patent ID: 8356542
Filing Date: 2013-01-22
Classification: F41A,F41C

Abstract:
1. A bump-stock and interface assembly for a semi-automatic firearm, said assembly comprising: a bump-stock and interface assembly for a semi-automatic firearm, said assembly comprising: a bearing element adapted for attachment to a firing unit of a semi-automatic firearm to establish a constrained path of reciprocation when said bearing element is coupled to the firing unit, a handle adapted to be grasped by a user's hand, said handle including a finger rest, said finger rest configured to stabilize the end of a user's trigger finger in a partially extended condition so that in use the user's trigger finger stretches in front of the trigger while the remaining fingers of the user's hand grasp said handle, said finger rest and said handle being fixed together as a unit, said handle including an opposing surface for directly interacting with said bearing element so that said finger rest and said handle are able to reciprocate in concert relative to said bearing element back-and-forth along said constrained path between fully compressed and fully expanded conditions, said handle including an overtravel impediment said impediment disposed to engage said bearing element and inhibit travel of said handle beyond said fully expanded condition, a biasing member operatively disposed between said handle and said impediment, said impediment being selectively retractable against said biasing member.