GBB model: TM desert eagle hardkick
quantity of propelent: at least 4 or 5 bottles of various brands of propane. (burnzomatic, siara trail, colman, and another)
failures to date: same thing as Egria experianced. a pice inside the slide broke, except mine broke right off and was floting around causing jams. took me a wile to figure it out, but i took it apart, removed the pice and it works again, except for the safty. (it might still be able to work, i have tried puting the pices back in) this was at a bottle of propane ago.
Note: this happend when i loaned the gun out a couple times, so i cant be sure that the cause was propane.
shit happens, don;t put your fingers or toes where you wouldn;t put your *****