CNC ERGAL spring guide for Marui M4/M16 SRE platform. To obtain the effect of reducing the vibrations deriving from the impact of the piston on the PAD of the cylinder head and guarantee the anti-torsion action of the spring, we recommend coupling it with the DELRIN shims sold together with the spring guide (the shims can be white, black or mixed). By entering the thicknesses in DELRIN it is also possible to adjust the output energy expressed by the replica.
The shape of the spring guide has been modified compared to those available on the market, the main shaft has been lengthened and slightly widened to provide greater stability to the spring during pre-compression and release even at high speeds, while at the tip it It has a progressive shrinkage of the shaft which makes it compatible with all springs on the market.
The spring guide is sold together with 3 DELRIN bearings to regulate the output energy:
x1 of 1.50mm,
x1 of 2.50mm,
x1 4.50mm.
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