Vosteed Kroc EDC Pocket Knife - 2.99" 14C28N Black Stonewash Blade, Sheepsfoot - Top Liner Lock, Blue Inlays Purple G10 Handle - Camping, Hunting Knives - A1807

If it doesn't specifically have to be D2, the Vision FG gives you a sheepsfoot-ish blade and an extremely similar lock. The Kizer Sheepdog and Vosteed Kroc also give you a sturdy lock and sheepsfoot-ish blade, albeit in Nitro V.