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MadMax · May 31st, 2006, 13:52

Ah, I think I know what's happening then. If you point the gun downwards, or even worse: flip it upside down, you orient the mag such that liquid propellant can come out of the mag (which is blasting out white fog).

The normal operation of the glock locks the mag valve open until the slide recoils about 1/3 of the way rearwards. At this point, a surface in the underside of the slide (left side) pushes down on a part which locks the firing pin forward and releases it, allowing the mag valve to close.

The slide recoils the further 2/3 of the way on the pressurized space in the recoil piston so by the time the slide has fully recoiled rearwards, the pressure in there is 1/3 of the initial pressure just as the valve closed because the chamber has tripled in volume.

When you admit a heap of liquid into the recoil mechanism, the liquid expands into a significant volume of gas which can provide a CONSTANT pressure in the expanding recoil chamber. This means that the pressure throughout the entire rearwards recoil cycle can be significantly higher than the design is meant to take.

May 31st, 2006, 13:52	#7
MadMax Delierious Designer of Dastardly Detonations Trader rating Join Date: Dec 2001 Location: in the dark recesses of some metal chip filled machine shop	Ah, I think I know what's happening then. If you point the gun downwards, or even worse: flip it upside down, you orient the mag such that liquid propellant can come out of the mag (which is blasting out white fog). The normal operation of the glock locks the mag valve open until the slide recoils about 1/3 of the way rearwards. At this point, a surface in the underside of the slide (left side) pushes down on a part which locks the firing pin forward and releases it, allowing the mag valve to close. The slide recoils the further 2/3 of the way on the pressurized space in the recoil piston so by the time the slide has fully recoiled rearwards, the pressure in there is 1/3 of the initial pressure just as the valve closed because the chamber has tripled in volume. When you admit a heap of liquid into the recoil mechanism, the liquid expands into a significant volume of gas which can provide a CONSTANT pressure in the expanding recoil chamber. This means that the pressure throughout the entire rearwards recoil cycle can be significantly higher than the design is meant to take. __________________ Want nearly free GBB gas?