Upgrade your AEG's fps to 350 to 380fps. It is highly recommended to upgrade plastic bushings and spring guide to metal bushings and spring guide with this product. Finally for best results a battery upgrade is also recommended.
I have this spring installed in my G&G FS-51, and I finally was able to chrono it at a game yesterday. This spring, paired with stock G&G gearbox parts, a Systema cylinder head, a closed cylinder, a 469mm Prometheus TB, and a Systema piston head, was giving me 357 to 358 FPS with .25g BB's.
I used a joule/FPS calculator on Arnie's to calculate that 357-358 FPS with .25's is equivalent to 398 to 399 FPS with .20's.
This spring might not be broken in, since I have been sticking to semi-only for the most part, so that may be a factor in the high FPS for an M110.
-Consistent FPS readings-_ There was only a 1 FPS difference.
-The relatively high FPS gave me a small range boost.
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