Estimated FPS output – 393fps
(verified owner) – October 26, 2019
Verified review - view original
(verified owner) – February 3, 2020
Great products, fast shipping. Always the first place I shop for parts!
(verified owner) – February 17, 2020
Good shipping time
(verified owner) – May 15, 2020
High quality spring. Maintain their tension well. SP rated, so will give around 120mps with .25g bbs, rather than M120 springs which are 120mps measured with .20g bbs.
(verified owner) – May 21, 2020
Good spring. Never had any trouble with Guarder springs.
(verified owner) – May 26, 2020
gr8 item and service
(verified owner) – June 29, 2020
Increased the pew pew of my ics M4 perfectly, great store service to.
(verified owner) – July 2, 2020
Lifted the fps no worries
(verified owner) – July 20, 2020
Fit well in my G&G. FPS was around where it should be.
(verified owner) – March 27, 2021
Once again awesome service, arrived the day after ordering it.
(verified owner) – April 3, 2021
Was available and was as expected
(verified owner) – May 16, 2021
This spring makes my gun sound even snappier and put my fos to where I wanted it
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