Rob Pincus

Tunnel Sights

Rob Pincus
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Duration:   3  mins

Tunnel sights have been around for a long time but have recently become a topic of conversation again due to the SIG Sauer P365 SAS. Rob Pincus doesn’t recommend tunnel sights and wants you to understand why.


One of the main ideas behind the SIG Sauer P365 SAS version is that it’s smooth: Nothing on the pistol is going to snag on the holster, on a concealment garment, on a pocket, or on your hand while you’re manipulating it. This means no sights protrude over the top of the gun.


Tunnel sights were found on earlier pistols because of deep-concealment pocket carry of .32 and .25 AC- type concealed-carry handguns, older guns that were designed not to have any sights across the top. Getting rid of anything that could snag meant the shooter ended up with a sight that can only be seen aligned through the tunnel that is part of the slide…

Rob isn’t a big fan of the SAS design and explains what else he doesn’t like about it, but to the point of the tunnel sights, which are one of his big issues with the design: The SAS has a fiber-optic sight built into the back of the slide. So instead of a traditional notch-and-blade type setup, or the more modern red-dot-sight setup, which attaches to the plate, with the SIG P365 SAS, on the plate where you might put an RDS, they’ve put a fiber-optic sight. It gives the shooter a ring and a dot.

At extension, if you don’t have everything lined up straight with your line of sight to the target behind you, you don’t see the ring and the dot because of how the fiber optic catches the light and pushes it only back straight through the gun.


A handgun outfitted with tunnel sights is not an optimal self-defense tool, in Rob’s opinion. Do tunnel sights work to get you the alignment you need? Yes. Do they give you the ability to reach higher levels of precision like a notch and blade do? No. Do they leave you searching for that alignment down the tunnel? Yes. And there is no backup sight.

Tunnel sights are not as easy or intuitive to use when you need more deviation control and a higher level of precision. That’s what notch and blade or a red-dot sight is for.

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