Tippmann X7, Tiberius Arms Foregrip, Lapco Apex-Ready Barrel w/ Apex Tip, Car Stock, Bipod, ZKH, Full Tech T Cyclone Upgrades
Strengths:
Kick is significantly less
Quieter gun
Weaknesses:
Need different spring to work
Little pricey
Review:
I first got the ZKH and put it in my X7 only to have my cyclone not feeding. After many searches through forums, I found out that the X7 stock spring isn't heavy/stiff enough to keep the valve open long enough for the cyclone when you have the ZKH in. After getting a new spring, it works great and all promises made by tech t are true. If you don't have the spring you need, email todd@techtpaintball.com and we'll send one to you for free.
Conclusion:
Excellent product despite the early troubles, I strongly recommend it for any tippmann owners.