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Demko AD20.5
The Demko AD20.5 is the production-scale entry point into the Shark Lock platform. Where the AD20 is a machine-ground, USA-made piece with limited availability, the AD20.5 is manufactured in Taiwan in volume — making it the most accessible way to carry Andrew Demko's signature locking mechanism without waiting on a drop or paying secondary market prices.
The Shark Lock works the same way across the lineup. The spring-loaded fin on the spine locks the blade open and doubles as a thumb ramp during cutting. Push the fin forward to disengage, and the blade drops shut on ball bearings. It's one-hand, ambidextrous, and designed to function reliably under sustained use — the same core mechanism as the AD20 XL, just in a more compact format. With a blade length around 3 inches (Clip Point) or 2.875 inches (Shark Foot) and an overall length near 7.5 inches, the AD20.5 sits in the sweet spot for daily carry.
The range of configurations on this model is wider than any other knife in the Demko catalog. Blade steels span four tiers: AUS-10A on the entry-level Grivory-handled models, CPM-S35VN and CPM-3V on the mid-range G-10 and carbon fiber versions, and CPM-20CV on the premium production models. Blade shapes include the Clip Point, Shark Foot, and Slicer, with slotted variants that add a deployment hole alongside the standard thumb stud. Handle materials range from lightweight Grivory at the entry level through G-10 and carbon fiber in the mid-range to smooth and milled titanium at the top.
That spread means the AD20.5 covers a price range from around $90 for a Grivory model up through $375+ for milled titanium — a rare breadth of options within a single model line.
DLT-exclusive configurations include CPM-3V Slotted Tanto variants in G-10, adding a blade shape not found in the standard Demko catalog.
For users looking at the smaller end of the Shark Lock lineup, the Shark Cub and Nano Shark trim the footprint further. For the full-size USA-made platform, the AD20 is the step up. Compare all models in the Demko Knives collection.