09-03-2013, 02:24 PM
frank Wrote:I ran some numbers and calculated the ideal gas port diameter for 18" RLGS to be 0.108". This also happens to match the gas port diameter of the MK12.
Of course numbers on paper sometimes don't always equate to real-world performance. Use this data at your own risk...
That's interesting. Most drill bit sets are in 1/64th increments. So .094 = 3/32 and the next step up is .109 (7/64ths). I didn't want to make that jump yet, but I feel it is still a little low since it takes a super lite buffer to run. The next step is to go to .109 and tune down the gas with the adjustable block.
This is an all new build, so I may run it as is for a while and see if I can move back up to a standard buffer after it has several hundred rounds through it.