Foursevens x Glow Rhino: Quark QK16L MKIII (Tritium Edition)

Introducing the Foursevens x Glow Rhino Quark QK16L MKIII (Tritium Edition):

Hail Prometheans and Foursevens Fam!

Welcome to 2026. Time for something old and something new. Back in October we dropped the first ever production flashlight that ships to your door with legally installed tritium. The Foursevens x Carryology x Glow Rhino drop sold out in under 2 hours. Yeah it was awesome, so we are following up with a second Tritium Edition Quark drop in collaboration with our friends at Glow Rhino.

The first Quark was launched in 2009. We’ve spent the last 17 years making it better, while maintaining nearly complete reverse compatibility. The Quark is meant to be used and it’s one of the most “experienced” flashlights in existence. This Quark comes with Tritium vials (2x green) legally installed. The vials are oriented so one is always facing directly up when the light is resting on its side.

We are offering a $25 discount on this drop (Wabi Sabi). Please see the Product Overview section below for details.

This light features a Nichia 319A in 5000K and 80+ CRI

A redesigned center section is larger in diameter than previous Quarks, but keeps the same diameter overall. This change has the added benefit of improving grip. This light is anodized in my new favorite color: Storm Grey with an Tritium Green highlight on the clip retaining ring.

* This package includes a FREE Xtar MC1 USB charger ($9.95 retail)

* Please charge your battery before use ;)