Madbull Airsoft Ultimate Spring Guide with Bearing - Version 3

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