Official video workshop · 1:48
Silverback VKS spring swap
Change the VKS main spring while controlling the spring guide, seating the stopper correctly and rebuilding the rifle without hammering the body pins.
Before you start
Key facts and tools
| Specification | Official value |
|---|---|
| Spring guide | Under preload; it will pop out |
| Helpful tool | Pin punch to push the guide |
| Seating method | Pull trigger so guide engages deeper |
| Pins | Long front, short rear; both by hand |
Tools
- VKS pin punch
- Eye protection
- Chronograph for post-change verification
Primary source
Watch the official Silverback tutorial
This guide follows the official subtitles and footage. Use the video for hand position and the written text for measurements, orientation and checks.
Procedure frames
Procedure
Step by step
Remove both body pins
Drive out the two pins with the VKS punch, then remove the handguard and stock.
Separate the receiver
Place the top cover on its right side and slide the receiver out so the spring-guide stopper is accessible.
Control the spring guide
Hold the spring guide firmly and remove its stopper. Expect the guide to pop rearward under spring force.
Install the replacement spring
Place the new spring on the guide and slide both into the receiver. Use a pin punch as a pushing aid if needed.
Seat guide and stopper
Pull the trigger so the guide can engage deeper, then slide the spring-guide stopper fully into position.
Rebuild the receiver
Replace the dust cover, slide the receiver into the top cover and place the assembly upside down on the rail.
Install stock and handguard
Fit the stock with the selector on FIRE and engage the trigger guard with the pistol grip, then install the handguard.
Insert both pins by hand
Long pin at the front, short pin at the rear. Align the bores and press both in by hand without using a hammer.
Critical checks
- Control the guide before removing its stopper.
- Use a punch to push, not to hammer body pins.
- Seat the stopper fully.
- Selector on FIRE while installing the stock.
- Chronograph and comply with local energy limits.
FAQ
Frequently asked questions
Why does the VKS spring guide jump out?
The main spring remains compressed against it; control the guide before removing the stopper.
Why is the trigger pulled during installation?
Silverback uses the trigger to let the spring guide engage deeper in the receiver so the stopper can seat.
What should be done after fitting a different spring?
Function-check the rifle and chronograph it with the BB weight used in play before taking it to the field.
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