Answer
Apr 05, 2026 - 11:58 AM
The polarstar hop up thing is compatible with 3x4mm round nubs. Using the right nub size is crucial for achieving the desired hop effect, ensuring optimal BB trajectory and performance for your specific setup.
What size nubs is this hop up compatible with? PolarStar Hop Up Thing for AEG and HPA V2 / M4 Rifles
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Open Apr 05, 2026 - 11:58 AM
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PolarStar Hop Up Thing for AEG and HPA V2 / M4 Rifles
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