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PUT A TRIT ON IT!

Silent Thunder Ordnance

 Convoy S2+, Nichia 319a 4000K guppydrv, orange tritium vial

Convoy S2+, Nichia 319a 4000K guppydrv, orange tritium vial

As part of our ongoing efforts to put tritium vials on literally everything, may we present to you our mod for the metal switch Convoy S2+. 

Why this light? Well it is sort of odd coincidence, but one day we noticed everyone here at STO was carrying a modded S2+ with a metal tail switch. The mods are all different, and vary greatly in terms of their relative sanity, but they all have the common thread of a metal tail switch because we all love how crisp and clean of an interface it allows. This particular S2+ is one of my personal EDCs, hence the weathered look which is hard earned, and is a pretty mild combination of new driver, upgraded thermal management, optical tuning, and a Nicha 319A in 4000K. It combines good visual acuity for tools and small parts up close, but still has enough go-juice to illuminate targets out to about 150 yards. (subjective real-world distance observations, not ANSI based) 

 Convoy S2+, Nichia 319a 4000K guppydrv, orange tritium vial

Convoy S2+, Nichia 319a 4000K guppydrv, orange tritium vial

So how to mod these lights for a nice big trit? There were several goals we wanted to achieve regarding placement. First and foremost we wanted the illumination to be visible from both the rear of the light, and from the side with as wide a viewing angle as possible. This makes the light very convenient to spot under the maximum number of circumstances. Most pointedly, when it is sitting lens-down on your nightstand, it shouldn't need a specific orientation to be very visible so it is quick and easy to grab in the dark. (presumably next to the trits in your pistol sights) Second, we wanted the trit to be held as securely, well supported, and as protected as was reasonable. The reasons behind this are obvious, but they run somewhat counter to the first requirement; the more protected the trit is, such as machined into a solid deep slot, the less visible it would be. Third and finally we wanted as much of the trit's light to be used as possible. End-on installation for example is very easy to do, but only a tiny fraction of the trit's total light exits the end. 

 Convoy S2+, Nichia 319a 4000K guppydrv, orange tritium vial

Convoy S2+, Nichia 319a 4000K guppydrv, orange tritium vial

What we settled on is a machined side-slot and a saddle cut into the side of the tail switch housing. It seems simple and obvious once you see it, and we feel it accomplishes our goals very well. When the light is head-standing, and your eye is parallel to the top of it, the trit is directly visible from almost 360 degrees rotation, and where it isn't directly visible there tends to be enough spill that the light's location is obvious anyway. The trit is also, of course, very visible when viewed from the rear. It is well protected, being several milimeters below the top of the light, below the metal switch housing too. And, finally, it is securely held at both its ends and center, as it sits in a saddle cut into the switch housing. Retention could be further increased by adding adhesive underneath the full length of the trit where it rests against the inside rear face of the light, however so far this hasn't proven necessary. 

 Spyderco Military titanium-g10 black S30v blade, deep blue tritium vial

Spyderco Military titanium-g10 black S30v blade, deep blue tritium vial

And that is how we did it. Now we just need to get trits onto every single other piece of EDC equipment.