
Originally Posted by
ucrt
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MarkM,
That's my understanding.
A quality AR maker's rep told me this past Wednesday, that the slower the BCG moves the better, (Which is still going to be pretty fast) and the Buffer controls the speed. He said a heavy spring has no place in a functioning gun, especially a factory "tuned" one.
He told me they got a gun back last month under warranty that the guy claimed wasn't reliable. Once the gun is in the shop, they see a heavier spring was installed. They call and confront the guy and he says, "It is a "better" spring than the one that was in the gun!" They asked him if the gun worked with the original spring and tells them, "Yes, it worked fine but this is a better spring!". Oh well...
I couldn't do that job. I'd have to say, "Well then go ahead and use the "better" spring but just get used to your gun failing...stupid!"
.
Yep it's funny. Lots of people mention 'mil-spec' a lot for this or that but then use springs which have no known mil-spec......
Mil-spec buffer springs have a minimum and maximum length for rifle length and CAR length springs which is in the USMC technical manuals. I've yet to see where aftermarket extra power so-called better springs have such specs for length.
Chief Armorer for Elite Shooting Sports in Manassas VA
Chief Armorer for Corp Arms (FFL 07-08/SOT 02)
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