Yeah, ill get the details up here soon, i just dont have the list of weapons in front of me. As far as the cups you speak of, i have no idea what they are. They fired 3 glocks, 2 had custom aftermarket parts, these 2 weapons failed to cycle and fired only intermitently, most likely due to lighter spring tensions causing the mechanism to not fully cycle, the one unmodified glock functioned without a hitch, the P229 was completely stock and fired/cycled without flaw, Lenny even double tapped it, this caused a buildup of gas in the barrel between shots, when the second shot went off the increased pressure caused by a gas pocket in an otherwise water filled barrel caused the case head to burst and be thrown out the ejection port. The gun was undamaged (no Kaboom). This is something to consider when shooting underwater, you must ensure that the weapon is completely filled with water, so that operating pressures are consistent throughout the weapon.