Official video workshop · 1:16
MDR-X Spring swap
Replace the main spring and confirm muzzle energy with a chronograph before field use.
Before you start
Safety, tools and revision
Safety. Disconnect the battery, wear eye protection and unload the replica. Follow local law; chronograph after any change that can affect energy.
Revision. Official options: 40N, 60N, 80N, 100N, 120N and 180N. Do not claim universal FPS/J: Silverback specifies measurements on product pages. Legacy V1/V2 video; verify V3 compatibility separately.
Tools
- Eye protection
- Appropriate hand tools
- Chronograph where applicable
Primary source
Official Silverback tutorial
Procedure frames
Procedure
Step by step
1
Open the access shown in the video
Follow the orientation in the official frame and video; do not force components.
2
Control spring assembly before release
Follow the orientation in the official frame and video; do not force components.
3
Install selected compatible spring
Follow the orientation in the official frame and video; do not force components.
4
Reassemble, function-check and chronograph
Before use, complete a safe function check and chronograph with the BB used.
Critical checks
- Battery disconnected and eye protection worn.
- No forced parts; official torque limits respected.
- Safe function check, chronograph and local compliance.
FAQ
Frequently asked questions
What else changes with a stiffer spring?
Silverback warns of faster battery drain and mechanical wear; strong springs may require battery-protection adjustment.
Does it apply directly to V3?
Do not assume so: confirm V3 documentation and references before disassembly.
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