Official video workshop · 1:48
MDR-X High nub swap
Replace the installed low nub with the supplied high nub for heavy-BB tuning.
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. High nub is for BBs heavier than 0.32 g and adds 500 µm preload. This is legacy V1/V2 video; V3 parts are documented separately.
Tools
- Eye protection
- Appropriate hand tools
- Chronograph where applicable
Primary source
Official Silverback tutorial
Procedure frames
Procedure
Step by step
1
Remove barrel assembly using official video
Follow the orientation in the official frame and video; do not force components.
2
Open hop unit and retain low nub
Follow the orientation in the official frame and video; do not force components.
3
Install supplied high nub in its seat
Follow the orientation in the official frame and video; do not force components.
4
Reassemble, tune hop 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
Will a high nub lift any heavy BB?
No. Silverback warns heavy BBs cannot be lifted with low muzzle energy.
Does it apply directly to V3?
Do not assume so: confirm V3 documentation and references before disassembly.
Share:
Silverback MDR-X Hop rubber and inner barrel swap
Silverback MDR-X Spring swap