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Condition:
NewNew
SHS Rotary Spring Guide. Airsoft AEG stainless steel rotary spring guide with bearing, ideal for use with a high torque, high speed gearbox. For Airsoft Use Only, cannot be Adapted or Modified for any other purpose.
No spring likes getting twisted 15 times a second! An SHS Rotary Spring Guide allows your spring to be compressed without getting twisted, so the energy stored up under compression is ALL released in one direction, pushing the piston forward, without wasting energy untwisting the spring.
This also makes life easier for the gears leading to increased reliability.
The bearings on the Spring Guide also increase spring compression resulting in a slight increase in FPS.
Overall, it's excellent value for a very important gearbox upgrade.