The Curtiss BMFs are some of the most unique designs on the market. Dave is most known for his F3 line but the BMF is where he shows off his waterjet work. It's a mean folder with a huge blade and a pistol-grip handle.
This is his most recent version. Demko Knives AD10, Hinderer XM-18 3.5, and Koenig Arius shown for size comparison only. 3 5/8" blade, 8 5/8" overall.