Patent ID: 8782943

Claim:
A quick-detach barrel mounting system for removing and attaching a barrel to a receiver of a firearm, the quick-detach barrel mounting system comprising: a barrel nut having a body defining an axial bore, the axial bore at least partially receiving a proximal end of the barrel therein; and a hand guard extending forwardly from the receiver and along the barrel, the hand guard having a cutout defined proximate to the receiver, wherein the hand guard at least partially encloses at least a portion of the barrel, and the cutout is at least partially aligned with the barrel nut; wherein at least a portion of the barrel nut is accessible via the cutout of the hand guard for at least partially moving the barrel nut relative to the receiver and the hand guard to enable detachment and mounting of the barrel to the receiver while the hand guard remains in position with respect to the receiver.