My reply was neither snarky nor intended to inhibit the sport. My reply pointed out that thread class is a descriptor of thread fit. Which may or may not apply to firearms. The descriptor "Class" can apply to threads throughout industry. My point is that your use of Class, as pertaining to firearms is not adequate and inaccurate by itself. I further suggest that without very expensive thread gages, you could not identify thread class in any case.
It can Jeff, if he referenced the NFA of 1934, but he did not. He referenced threads, not firearm classes as defined by the NFA. Hence, my appropriate comment.
Actually Steve is correct. The threads used for suppressors are called class 3 threads and have a different design and way the pitch is cut than machine threads or acme threads. This is critical in firearms suppressors to maintain concentricity to the bore axis and avoid baffle strikes or endcap strikes which can be, but not necessairily, considerably more catastrophic than airgun strikes.
Pedantic at best. Thread pitch gauges are neither difficult to come by nor expensive for quality accuracy.
I concur with Steve. I did not read his reply as “snarky”. It was matter of fact, making a simple statement.
"Google is your friend" is never a helpful reply.... at the very least its passive aggressive. Forums are by nature, as we all profess to believe, for the exchange of information and ideas. This means threads and subjects are going to get cussed and discussed over and over. It is far more productive for the sake of communication of to answer a question asked with an answer that addresses the OPs query than it is to junk a thread up with "google is your friend"...
I’m gonna have to stick with my opinion. I was raised in the 50’s, son of a World War II veteran father, we were just raised different back then. Insult my mother or father and we have a problem. A meaningless comment on the web, not even worth fretting over. In todays world people are told what makes them feel bad.
We are of the same era, I have just made it a mission to embrace technology since its here to stay and to that end learn more effective ways to communicate than I did as an E-8 in the USMCI’m gonna have to stick with my opinion. I was raised in the 50’s, son of a World War II veteran father, we were just raised different back then. Insult my mother or father and we have a problem. A meaningless comment on the web, not even worth fretting over. In todays world people are told what makes them feel bad.
It’s like the govt telling us it was disrespectful to name U.S. military helicopters after native American tribes. Native Americans were honored with those names and made it known. Woke govt told the sheep what to think.
Cleveland Indians, Baaaaaaaad. Cleveland Guardians goooooood.
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I am trying to be nice, A thread pitch gage will not identify a thread class. There are special expensive inspection gauges that are used for that purpose. Secondly, mounting threads never assure proper alignment of anything. Precise alignment is always achieved with a register of some sort machined into the mating parts. In most cases clipping is caused because there is no register to the barrel especially when the moderator is attached to the shroud in the case of many air guns. Let's also be clear, this class discussion was caused because you used the words "class 3 threads". What you wrote, I suspect, is not what you meant.
Somehow we are on exactly the same page but different frequencies. I have been cutting threads of all classes and most other types of machining operations for 40+ years and am intimately aware of the differences. My replies were possibly to concrete in logic. I saw no reason to go into that depth of discussion when the question was for the poster that asked directly about pitches. It referenced only pitch so clearly he was concerned with pitch vs. class of thread In relation to difference between FA vs AG devices. I used the phrase Class III as a catch all as it is commonly used in the world of FA, poorly articulated and agreeably a bit lazy I will give you that. The poster I replied to was not concerned (at least in his query) with strikes, only the different sizes commonly used between the two sporting endevors.
