In "Frogman" what knife\gun was o j simpson using?

This is going to be a little bit harder to answer since they didn't release the movie due to his "tragedy"
It it was filmed and edited shortly before his wife was murdered, he most likely had some knife fighting training for the movie
He was the leader of a SEAL Team, I understand there was a scene with him having a knife fight with multiple opponents............
(I'm guessing they edited out the parts where his knee problems were to severe to have a knife fight)

The same one he used on his wife and her boy toy!

It was filmed in Puerto Rico, the film "Frogman," , or the pilot "Frogman"  

I would like to see that

Sooo..........this one took a little longer than 12 minutes, eh?