Nw black magic cup seal
Nw tear drop rise
Cmi Thunderpig barrel
Cmi R-2000 Regulator
Crossfire 68/4500 lp
Thsi thing will NEVER leak, and has a warranty!
There are none.
I've only played with this seal for a practice... but i shot over two cases in my practice after just putting the seal in, and it held great. I had blown my stock seal on my bushy for being stupid and not using nitro:)
This is really a great upgrade for your gun, especially if you shoot a gun with co2 because if you shoot fast enough, or don't have filters on your gun, you'll have to replace them. This seal is Warrantied, and lasts forvever!
Because i now get a good seal out of my gun, and don't leak down the barrel.... its a defenite buy for any gun i have now and in the future.