Some Navy aviators bought their own revolvers. I think the guy who wrote, Flight of the Intruder carried a M-19 .357 like his fictional character did. The author flew A-6 Intruders in the Vietnam war. Name is Stephen Coonts.

His book became a quite good movie, marred for me only by one piece of casting that stank of Hollywood's preoccupation with PC.
You can see clips on YouTube.

While in the USAF, I occasionally saw Navy aircrews on our bases. They were in transit or refueling, etc The guns I saw were always WWII S&W Victory Model .38's. Knives showed more variety.