HK Army’s PVTLock system is the soul of the new mask. The KLR is the first goggle system designed to incorporate a completely interchangeable lens, strap, and hinge that can be easily switched out and customized in seconds. HK’s patent-pending PVTLock is easy to use. To switch out the lens you simply unclip the strap, open the strap-retained PVTLock hinges, replace the lens and clip the PVTLock hinges back in place.
One of the best elements of the PVTLock system is color and lens customization. There are 10 total lens options for every situation, 15 different strap colors and 16 PVTLock color options. Between the different color straps, masks, hinges and lenses you can create over 15,000 unique combinations. Aesthetically, the KLR is one of the most advanced goggles we have seen.