Anyone come up with a good substitute for a factory weihrauch breach seal? I need about 50 of them, and at $4 a pop (cheapest i can find from ARH) iy gets pretty expensive pretty quick for just a silly reach seal. My diana rifles are easy, i just use #109 o rings that I can buy 100 of them for $10. The weihrauch seal is obviously more complex, but I refuse to believe nobody has come up with a cheap solution to buy these in bulk. Any help is much appreciated,thanks!