Abstract: A hand guard assembly for installation on a standard barrel nut is disclosed. In accordance with some embodiments, the hand guard assembly may include a hinged hand guard comprising a left clamshell component and a right clamshell component, which may be mounted on a standard barrel nut. The design of the hinged hand guard allows the hand guard to securely fasten on the standard barrel nut by accommodating the sprockets of the standard barrel nut in an internal radial groove, and/or encasing the firearm's gas tube in a longitudinal notch. The disclosed configurations may allow a user to attach and remove the hand guard easily and quickly from the firearm without modifying the standard barrel nut or removing the gas block.

Abstract: A hand guard assembly for installation on a standard barrel nut is disclosed. In accordance with some embodiments, the hand guard assembly may include a hinged hand guard comprising a left clamshell component and a right clamshell component, which may be mounted on a standard barrel nut. The design of the hinged hand guard allows the hand guard to securely fasten on the standard barrel nut by accommodating the sprockets of the standard barrel nut in an internal radial groove, and/or encasing the firearm's gas tube in a longitudinal notch. The disclosed configurations may allow a user to attach and remove the hand guard easily and quickly from the firearm without modifying the standard barrel nut or removing the gas block.