Discussion in 'Rifle Country' started by M1key, Feb 5, 2014.
Also it had no cuts for front sight pins. Is no one doing this anymore?
Oh well, it's definitely going back.
On more then one level!
I can't help but think that every barrel and extension from them is suspect. Why was the extension not torqued immediately upon mating with a barrel? How many more are out there that got shipped like this?
Some minimum wage guy in the back warehouse was task with screwing extensions on barrels for later final cleaning, torquing, & headspace check by a higher paid employee in the heated part of the shop.
They just got put on the rack & shipped before final cleaning & assembly.
After the extension is installed the gas port is drilled, since the index pin sets TDC. After all that is done the FSB would be installed and the taper pin holes drilled thru the FSB and barrel all at once.
The pin isn't seated properly because of all the metal that was removed behind the threads. I undercut mine some to assure a flat surface for the nut to jam to but not that much.
There is no need to headspace with the extension on the barrel if one has and can read a micrometer.
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