SBR Question: 11.5 - 14.5?

[DocGKR]

demigod,

Not bold at all; simply look at the data for gas port erosion, bolt failures, and functional barrel life.

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A good quality Mk18 or SAW Colt with 10.5" runs well, but in general the 11.5" uppers are a bit more trouble free.

[markm]

demigod,

Not bold at all; simply look at the data for gas port erosion, bolt failures, and functional barrel life.

Using those 3 criteria, does the 14.5 do significantly worse than 11.5 and 16" all things equal?

[Hootiewho]

I had heard that the 14.5" was very hard on the system before; more so than the other lenghts. Who know's?

[markm]

I had heard that the 14.5" was very hard on the system before; more so than the other lenghts. Who know's?

I suppose it's possible, but I can't really see how it could be any worse than a 16" weapon. And I always thought the shorter uppers were more violent operators... having to beef up the extraction, etc.

[Hootiewho]

In all fairness, the gunsmith that told me that taked about 16" guns that ran a middy gas system. I imagine that a 16" carbine would have the same problems as a 14.5". I don't know personally, just passing on that I had heard the same type thing as Doc said about the 14.5"er's.