作者: Jesus S. Gomez
DOI:
关键词: Barrel (horology) 、 Nut 、 Electronic engineering 、 Lock (firearm) 、 Mechanical engineering 、 Engineering
摘要: An upper receiver assembly for a firearm having an with integral barrel nut, handguard and nut lock is provided. The received by the secured directly to using nut. also includes mounting member which may be attached. allows user attach both assemblies receiver, independently of one another.