Marking the first application of the AXIS Dual-Action mechanism, the 5400 Serum is a notable addition to the Benchmade lineup. The AXIS Dual-Action mechanism functions like a regular AXIS lock for manual operation, but when the AXIS bar is fully pulled back the automatic mechanism deploys the blade. Benchmade has equipped the knife with a secondary safety system to eliminate "dry fire," which occurs when a blade isn't fully closed.
The Serum is a versatile setup with the ambidextrous AXIS Dual-Action mechanism, comfortably milled G-10 handle, and modified drop point blade. The 5400 model has a satin finished 154-CM steel blade with a plain cutting edge and black G-10 handle with a reversible tip-up carry pocket clip. This is an outrageously clever knife from the crew at Benchmade.
Mechanism: AXIS-Automatic
Action: Automatic-opening
Blade Steel: 154CM
Blade Length: 3.47"
Blade Thickness: 0.12"
Open Length: 8.14"
Handle Thickness: 0.58"
Weight: 4.63oz
| Blade Edge | Plain |
|---|---|
| Blade Finish/Color | Satin |
| Blade Style/Shape | Drop-point |
| Clip Type | Deep-Carry, MALICE CLIP® (MOLLE Compatible) |
| Clip Position | Reversible Tip-Up |
| Glass Breaker | No |
| Handle Material | Black G10 |
| Lanyard Hole | Yes |
| MOLLE Compatible | Yes |
| Use | Tactical |
MODEL: 5400 PO