I am in the process of building a Mark 12 SPR clone and I wonder if anyone might know what the exact gas port location and diameter might be?
I have a Schneider SS 7-twist 5-poly barrel blank and I thought it would be one heck of a lot easier to ascertain this critical dimensional information, so if anyone can point me in the right direction I would be eternally grateful.
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May 4, 2008, 11:11 PM
May 5, 2008, 12:35 AM
I've had poor experiences on AR15.com
May 5, 2008, 12:59 AM
May 5, 2008, 01:38 AM
I'll see if I can dig up the info there.
May 5, 2008, 07:51 PM
After making a few phone calls and begging, I believe I've gotten the info - but if I tell you where I got it, I'd have to... :neener:
After talking to a very fine gentleman at a well-known precission AR-15 company, I drew up this schematic.