ALEXANDRIA, Va., June 5 -- United States Patent no. 12,276,470, issued on April 15, was assigned to LWRC International LLC (Cambridge, Md.).
"Firearm receiver assembly" was invented by Jesus S. Gomez (Trappe, Md.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An upper receiver assembly for a firearm having an upper receiver with an integral barrel nut, a handguard assembly and a barrel nut assembly with a barrel and lock nut is provided. The barrel is received by the upper receiver and is secured directly to the upper receiver using the lock nut. The upper receiver also includes an integral handguard mounting member to which the handguard assembly may be directly attached. The upper receiver assembly allows ...