These SHS cylinder and spring sets offer a nice upgrade package for your VSR. They include a stainless cylinder and cylinder head which is important for long term durability or if you are upgrading the spring. Most stock cylinders are aluminum and cylinder heads brass. The threads in the aluminum cylinders will often strip out over time from the impact of the piston. This set also includes a steel ball bearing spring guide and spring. The ball bearing spring guide is a good upgrade to have for better velocity consistency which improves accuracy. The spring doesn’t have an exact rating but generally with these upgrade kits they are stronger than stock and offer a nice bump in FPS.
This product was added to our catalog on Thursday 03 November, 2016.