A gun lock system for securing a portion of a firearm for safety and theft-deterence. wherein: the gun lock system comprises a tongue, a lock shell, and a release assembly. The lock shell comprises a width, a height, a depth, a front side, a back side, a top side, a first side, a second side and a bottom end. The lock shell further comprises a tongue slot configured to selectively receive a portion of the tongue. The tongue comprises a tongue width and a tongue depth. The tongue slot comprises a slot width and a slot depth. The tongue comprises a first end and a second end.