Got an AR! But some sort of feed problem!

Frank,

I believe it was one of the batch of rifles that made it into the wild with undersized gas ports.

Of course, I could be wrong, I am losing track of these threads (and please don't take that comment as bashing, that's not how it was meant).

Regards.

Mark

Just how big should the gas port be to begin with?
 
I am at work, so I don't have access to my manuals or books at present.

I am also on my iPhone, so my googlefu is weak, but if you google AR gas port sizes, it should come up with a few hits. Size will vary with DI system and barrel length.

Regards.

Mark
 
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