What is it? Pocket knife found magnet fishing.

[Silent H]

My guess is some sort of tourist knife. Some places will have a rack of knives with all sorts of common names on them that you can buy as a souvenir.

I'm guessing someone named Garrett is missing a knife that he or someone he knows bought while on vacation.

 

[KenHash]

OP- Is there a close up or just better photo of the ricasso markings on the left side? Opposite of the Stainless steel.
It looks like there might be an Importer's brand name there.
I suspect the "Garret" to have been added by the owner, or a PR thing for a business/store and has nothing to do with
the knife itself.
The design points to Moki and G.Sakai, and you can see similarities with some 1980s Gerber/Al Mar knives.

 

[OrangeBlueOrangeBlue]

Found this one, with the same AS tang stamp. OP's is definitely a souvenir-quality knife.

 

[USMCPOP]

The logo on the handle certainly looks like the one GARRETT metal detectors use.

 

[killgar]

Nothing here that solves the identity of the OP's knife, but I found a vintage knife marked "GARRETT", that says "Japan" and "Stainless" on the ricasso of the knife blade, and the blade-kicks are very similar in design as the ones on the knife posted by OrangeBlueOrangeBlue. To me the blade-kicks are rather distinctive, I don't think I've ever seen them like that before seeing the knife posted by OBOB.

The knife blade also has a stamp that the seller says is "Barlow" on the ricasso above "Japan" and "Stainless". Apparently "Barlow" was a brand as well as a type of knife, as I see other knives marked "Barlow" that are clearly not a Barlow style.

 

[galsoutwesttreasurehuntin]

The logo on the handle certainly looks like the one GARRETT metal detectors use.

I thought so too.

 

[galsoutwesttreasurehuntin]

Nothing here that solves the identity of the OP's knife, but I found a vintage knife marked "GARRETT", that says "Japan" and "Stainless" on the ricasso of the knife blade, and the blade-kicks are very similar in design as the ones on the knife posted by OrangeBlueOrangeBlue. To me the blade-kicks are rather distinctive, I don't think I've ever seen them like that before seeing the knife posted by OBOB.

The knife blade also has a stamp that the seller says is "Barlow" on the ricasso above "Japan" and "Stainless". Apparently "Barlow" was a brand as well as a type of knife, as I see other knives marked "Barlow" that are clearly not a Barlow style.

That appears to be the same font for my GARRETT.

 

[galsoutwesttreasurehuntin]

Found this one, with the same AS tang stamp. OP's is definitely a souvenir-quality knife.

Interesting about the A S. Thank you.

 

[USMCPOP]

Why not ask Garrett (the metal detector guys)? Call their sales department as they would know if they gave away promo knives. My dad was in sales and I have many cheap promo giveaway things including pen knives.