Patent ID: 6266908
Filing Date: 2001-07-31
Classification: F41A,F41C

Abstract:
A firearm frame and barrel assembly comprising; a frame member having a forwardly open internally threaded bore, an axially elongated generally cylindrical unitary barrel sleeve having a coaxial rifled bore therethrough including spiral rifling grooves and having an external thread on its rear end portion threadably engaged within said internally threaded bore, said barrel sleeve having an integral diametrically enlarged annular flange at its front end defining an uninterrupted radially disposed annular forwardly facing muzzle surface coaxially surrounding said rifled bore and a rearwardly facing annular bearing surface, a barrel shroud having a barrel receiving shroud bore extending axially therethrough and having a diametrically enlarged forwardly open recess at its forward end partially defined by a forwardly facing annular seating surface, said annular flange being wholly received within said recess with said bearing surface in engagement with said seating surface, and an assembly tool having an axially elongated shank received within said rifle bore and having radially outwardly projecting spiral lands extending therealong in complementary engagement within said spiral rifling grooves, said tool having arresting means for limiting the axial extent of said shank into said rifled bore, and means for applying torque to said assembly tool to threadably secure said barrel in assembly with said frame member whereby said barrel sleeve may be assembled with said frame member with an applied torque of predetermined magnitude.