The Assisted Opening folder bridges the gap between manual knives and automatics. With a spring-assisted mechanism and AXIS® lock, the Benchmade 580 Barrage® offers fast deployment, rock-solid lockup, and reliable one-handed use—all without the legal limitations of autos.
Here’s a detailed look at the internal components that make up an assisted folder like the Barrage:
Key Components
1. Omega Spring
Drives the lock stud into place, allowing the AXIS® lock to function with consistent tension.
2. Lock Stud
Moves back and forth to lock or release the blade during open/close cycles.
3. Liners
Steel inner frames that add rigidity and structure to the knife’s handle.
4. Handle Scales
Durable outer layers—typically polymer, G10, or aluminum—designed for grip and ergonomics.
5. Pocket Clip
Allows for secure tip-up carry.
6. Backspacer
Connects the handle scales and provides structural support.
7. Dowel Pin
Anchors key internal components and ensures alignment between liners.
8. Stop Bushing
Creates a stable pivot for the stop pin to strike against.
9. Stop Pin
Prevents over-rotation of the blade when opening.
10. Washers
Placed between the blade and liners to ensure smooth opening and closing.
11. Male Thumb Lug
One half of the ambidextrous thumb-opening system.
12. Female Thumb Lug
Threads onto the male lug through the blade for a secure press-fit.
13. Pivot Bushing
Provides rotational structure for the blade around the pivot.
14. Blade
Made of high-performance stainless steel, designed for rapid deployment with a spring assist.
15. Torsion Spring
Drives the assisted opening action once the blade is manually moved past the activation point.
16. Safety Bar
Engages to prevent unintentional deployment when the knife is in pocket.
17. Safety Spring
Applies tension to the safety bar, keeping it in position.
18. D-Nut
Secures the pivot system within the liner structure.
19. Pivot Screw
Adjustable screw that controls blade tension and ensures secure pivot alignment.
A Note on Service
While assisted-opening knives are easier to maintain than autos, we do not recommend disassembling your Barrage. Doing so may affect spring alignment and will void your warranty. For service or repairs, reach out to our team directly.