Madbull Spring Guide with Ball Bearing V2

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Madbull Spring Guide with Ball Bearing V2

The version 2 ball bearing spring guide features a slightly thinner diameter shaft to accommodate springs of all sorts, making it more forgiving for both the spring and piston to compress. The spring guide’s shaft is built-in with the top bearing plate to allow more rigidity and maximum spring decompression. As a spring decompresses, the bearings allow full twisting, adding improved rounds-per-second and maximum power.


  • Thinner guide shaft for easy, stress-fee spring compression 
  • One piece bearing top plate and guide shaft.
  • Loose bearings for maximum spring twisting.
  • Smooth anodized finish.
  • Machined lightweight CNC aluminum.
  • Ball bearings 
  • Version 2 design 
  • Steel Spring Guide w/Ball Bearings


  • Model: MB SG V2 / ULSG-2
  • Manufactured by: Madbull
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