Quote History Quoted:
8 years ago or so when I built my Franken-Larue in 6.8 it was recommended by the board that shall not be named that your upper receiver have the M4 feed ramps so that’s what I bought and it always worked well. No FTFs or marring of the brass.
It’s been so long that I don’t remember why that was recommended for any other reason than preventing feed issues.
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I think m4 ramps improve reliability while firing at full auto on carbine length rifles, but at a cost of slight accuracy?
The 20" m16's used standard feed, but when the military shortened the barrel and went to carbine length the m4 cuts were adopted to counter reliability issues with going to a shorter gas system?
If you don't have a carbon length rifle that is also full auto then m4 ramps do more harm then good. The "
CHART" that floated around in the mid 2000's
pushed every one to want m4 cuts Just like the market has pushed mlok on everyone but is not really improving the rifle.
If you are shooting semi auto and shooting for accuracy standard is the better option, but is not the teir 1 flavor of the month so to meet Market demand LaRue does both even know they know standard is better.
I may be wrong on this, but this is how I remember it. So feel free to correct some or all of my post