Patent ID: 8296987
Filing Date: 2012-10-30
Classification: F41A

Abstract:
1. A shotgun comprising: a first barrel having a first barrel muzzle end and a first barrel breech end; and a second barrel having a second barrel muzzle end and a second barrel breech end; wherein an expansion joint is provided adjacent the first barrel muzzle end and the second barrel muzzle end to connect together the first barrel muzzle end to the second barrel muzzle end, wherein the expansion joint includes keying portions machined into a parent material of the first and second barrels, and whereby the expansion joint is operative to allow movement of one of the first and second barrels relative to the other one of the first and second barrels to prevent bowing thereof; wherein a mono-block is provided having a pair of bores, the first barrel breech end and the second barrel breech end each disposed in a respective one of the pair of bores of the mono-block; and wherein a pair of tube nuts are provided and each extends into a respective one of the pair of bores of the mono-block to secure a respective one of the breech ends of the first and second barrels independently of one another to the mono-block.