CYMA has recently introduced the Quick Buffer System (QBS) to its product line. This innovative system enables quick and hassle-free spring changes that can be easily done by hand.
With the QBS, you only need to remove the buffer tube castle nut to access the captured guide rod and spring, making the process efficient and straightforward. There’s no need to disassemble your receiver or remove your stock from the buffer tube, which saves you time and effort.
Watch the full video by Evike.com Airsoft: