Applez
GBGood store, reccomend Dispatch is a bit slow, but the blaster themselves are pretty good quality, this shop is owned by the same person that owns zhenduotoys.com, and you can buy "balance" with paypal here so that you can purchase items from the zhenduo main store. It's kinda confusing, just contact their support they will explain it. They were really helpful in the support chat so I guess i'd reccomend.
Kien
GBDecent store but small range Lost one star due to slowness in dispatch. Made two orders so far, UK stock: delivery time was as expected, but dispatch was slow, rs99-17 and m1911 are still working great. China stock: typical dispatch and delivery time. I think the m1911 is the best low cost gel blaster for £20-30 range, the speed is pretty nice stock and if you use 11.1v is crazy, just remember the gears are plastic so they will wear out quickly, you can order a new gearbox though.