BT TM7 this is a must have!

Bought this upgrade for my BT TM7 along with the MRT Bolt. Why can I say, these are a must have for any TM series marker. Across the board improvements. The only thing I can say bad thing I can say about these springs is that they are not marked to which one is which. But it's easy to figure out. Worth every penny.

''THE'' best upgrade for your Tpx, TiPX

This upgrade is awesome. Very low pressure. It pays for itself. I used to use one co2 cartridges per 14 or so shots(2 Tipx mags). Now with this upgrade, I can shoot twice as much shots, about 5 mags. So do the math. This upgrade is less than 20 bucks? Co2 cartridges are about .70 cents to a buck? So with this upgrade you use twice as less co2 cartridges, so this upgrade pays for itself. :D