The Microtech Halo VI is the grandaddy of OTF knives. It is a large OTF and unique. The Halo VI is a single action OTF and has a rear charging handle to "reset" the blade after deployment. Some models will come with a safety switch on the deployment button and some are a "no safety" model and come with a belt carry sheath.
Halo VI can come in either a M390 blade or an Elmax blade depending on production.
This Halo VI has a tanto edge stonewashed blade, a OD Green chassis and does NOT have the safety mechanism on the deployment button. This Halo VI comes with a kydex belt sheath.