Civivi Synergy4 Black G10 (3.94" Black Nitro-V) Folding Knife [ C21018B-1]
Usually ships in 1 business day.
Delivery time is additional. Business days exclude weekends and holidays. Shipping details.CIVIVI Synergy4 — Design and Use
Jim O’Young’s Synergy4 expands the Synergy design into a larger folding format. Its sculpted handle and long blade carry the family’s flowing lines through a full-size everyday knife, with a flipper as the opening point.
The nested liner lock sits within the handle, and ceramic bearings support the pivot. Trailing-point and tanto configurations provide different edge and tip geometries, so the exact blade style below matters. The dimensions also distinguish the Synergy4 from the smaller Synergy3 and Mini Synergy designs.
The C21018B-1 blade is made from Nitro-V. Its finish is black. The handle uses G10.
Specifications
| Manufacturer reference | C21018B-1 |
|---|---|
| Overall Length | 9.31" / 236.5mm |
| Width | 1.76" / 44.7mm |
| Overall Height(Include Clip) | 0.75" / 19mm |
| Blade Length | 3.94" / 100mm |
| Closed Length | 5.37" / 136.5mm |
| Blade Thickness | 0.12" / 3mm |
| Handle Thickness | 0.57" / 14.4mm |
| Knife Weight | 5.15oz / 145.9g |
| Blade Material | Nitro-V |
| Blade Hardness | 59-61HRC |
| Blade Grind | Flat |
| Blade Finish | Black |
| Blade Type | Tanto |
| Handle Material | G10 |
| Handle Color/Finish | Black |
| Liner Material | Stainless Steel |
| Liner Color/Finish | Black |
| Backspacer Material | G10 |
| Backspacer Color/Finish | Black |
| Pocket Clip | Tip-Up, Right Carry |
| Clip Material | Stainless Steel |
| Screws Material | Stainless Steel |
| Pivot Assembly | Caged Ceramic Ball Bearing |
| Locking Mechanism | Nested Liner Lock |
| Designer | Jim O’Young |
| Store SKU | CIVC21018B1 |
| Country of origin | China |