Patent ID: 8393107

Claim:
A firearm assembly comprising: a first weapon including a first receiver having a front end, a barrel attached to said front end with said barrel defining a barrel axis, and a front sight attached to said barrel; a second weapon selectively mounted to said first weapon and including a second receiver and a mounting system coupled to said second receiver with said second weapon being movable between an engaged position attached to said first weapon and a disengaged position detached from said first weapon; said mounting system including: a first portion attached to said second receiver and coupled to said front sight to define a first attachment point when said second weapon is in said engaged position, and a second portion coupled to said second receiver and spaced from said first portion in a direction along said barrel axis, with said second portion having a first end coupled to said front sight to define a second attachment point and a second end coupled to said first receiver to define a third attachment point when said second weapon is in said engaged position; wherein said first weapon includes a hand guard portion coupled to said first receiver and said front sight with said hand guard portion and said second portion engaging each other when said second weapon is in said engaged position to define a bore therebetween for receiving said barrel.