Unleash the F4 Echo, a precision-built manual flipper created in collaboration with Zastava Arms USA. Designed for control and feel, the F4 Echo opens with the intent and closes just as deliberately, giving each movement purpose and confidence in hand. Built for real-world carry, it balances strength, reliability, and refined handling, blending premium materials with rifle-inspired design details to create a modern folding knife that feels deliberate, capable, and ready for everyday use. Product Features Ambidextrous Pocket Clip Lanyard Hole Tekto Pouch G10 Inlays S35VN Blade Steel Smooth Button Lock Product Specifications Handle Material: Aluminum & G10 Blade Material: Titanium-Coated S35VN Blade Hardness: 60-62 Blade Style: Fine Edge Reverse Tanto Locking: Button Lock Blade Length: 3.40" (86mm) Handle Length: 4.30" (109mm) Open Length: 7.70" (196mm) Handle Width: 0.5" (13mm) Weight: 2.64oz (75g)