A.E.G. Irregular-Pitch Spring S100+
Power: 330 ~ 350 fps (please note, FPS May vary depending on individual rifle and manufacture)
This item is manufactured from a A class piano wire, very durable and strong.
Irregular pitch coiling for enhanced performance. Very Consistent FPS.
Easy to install. Every spring has gone through vigorous and Sophisticated quality tests from the moment a new design leaves the software drawing through to final mass production.