Other Lee associates such as Steven McQueen are known to have been NFA collectors. And despite Lee's martial prowess he is never known to have been dismissive of guns in his films. To the contrary in "Enter The Dragon" he quips the line 'Now why doesn't someone pull out a .45 and "bang" settle it?" as an alternative to a government agencies complicated infiltration by martial artist assassin scenario. Of course plot constructs had to be such that for whatever reason firearms were not an option in order to prevent the movie from being 15 minutes long. In another film "Return of the Dragon" when threatened by the Mob, Lee inquires about buying a gun for protection. A line that can still make modern martial arts devotees who think "real fighters don't need guns" cringe.
I didn't find the right solution from the Internet.