View Full Version : Gas tube question
October 12, 2002, 23:49
Are the long metric gas tube brazed or just pinned? And, can you use a standard metric long tube in place of an Israeli gas tube?
October 13, 2002, 01:18
"Are the long metric gas tube brazed or just pinned?"
The short StG tubes are brazed; all other long tubes are just pinned. Exception: a previous owner got tired of troubleshooting a gas leak problem and brazed his/her long tube in place. On long pinned tubes, they are SUPPOSED to wiggle a bit. Tube is normally screwed as far into the gas block as possible, then backed off just enough to align the notch with the gas port at 12:00, as well as the clearance cut with the pin boss at 6:00.
"Can you use a standard metric long tube in place of an Israeli gas tube?"
Depends on whether an LB or HB. If in case of a Heavy Barrel, no, these are a special (longer) length. As for the standard or "Light Barrel", it's my understanding that any long tube will work.
October 13, 2002, 09:19
Dang, I found a long tube on a G1 barrel I'm not going to use and I hoped it would fit a heavy barrel. :sad:
October 13, 2002, 09:59
I would say "use it if you want". There is a built in slip area at the receiver end that should handle the small difference in tube length.......although with the multi problems I've read about resulting in tube blow-out in the G1 breed, I think I'd personally go with one of the excellent Israeli tubes. :p , orca
October 13, 2002, 12:58
Good luck to you if you can make it work. I tried it already without success. It seems there needs to be more support at that end of the tube to avoid binding problems.
Try it nonetheless for yourself, who knows, you might have the right combination of parts and tolerances to allow the use of a regular tube on your HB. But it was no joy for me.
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