Didn't the Israelis use them?
I'm not sure but if memory serves the Canadians did for a while back in the 90s. The early ones were rumored to fail from the heat generated from full auto fire but I doubt the OP is planning to go full rock and roll anytime soon and the formulation has probably changed in the last 15-20 years. I still have a couple of really old pre-ban Thermolds that I bought in the early 90s for my Mini that seem to work okay but I use them sparingly.
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