Lock up system for a handguard

摘要

A lock-up system for a firearm comprising a wedge assembly having a top wedge member and a bottom wedge member, each having complementary inclined surfaces; a barrel nut that is configured to receive an outer portion of an upper receiver; and a handguard that is configured to receive the barrel nut and the combined wedge assembly within a lower lip of the handguard. The wedge assembly may include an optional assembly screw and a locator pin where the top wedge member and bottom wedge member are tightly joined to each other via the assembly screw and the locator pin. In use, the lock-up system is used to join the handguard and barrel nut to a corresponding upper receiver with little to no play between the handguard and the upper receiver such that the connection between the two via the wedge assembly is intended to be permanent.

主权项

1. A lock-up system comprising:
a wedge assembly comprising:
a top wedge having an upper and a lower surface, the lower surface of the top wedge being inclined and the upper surface of the top wedge having an indented shape; anda bottom wedge having an upper and a nonplanar lower surface, the upper surface of the bottom wedge being inclined and complementary to the lower surface of the top wedge; a barrel nut, configured to receive a barrel of a firearm, the barrel nut having a first end and a second end, said second end configured to receive a portion of an upper receiver; the barrel nut having an outer surface configured to be in a biasing relationship with the indented surface of the top wedge; and a handguard having a longitudinal length with a first end and a second end with a bore therebetween; the handguard configured to receive the barrel nut at the second end of the handguard; the handguard further configured to include an outwardly protruding lower lip at the second end, the lower lip having an interior surface that is configured to receive and contact the lower surface of the bottom wedge.