I know......I know....another 11.5 buffer question.
The problem is, it seems like everyone has luck with different weights:
"My 11.5 BCM has run perfectly with H"
"BCM specifically designed the 11.5 to run with standard buffers"
"I run an H2 and it is fine"
Anyway...when building my first AR with less than 16 inch barrel I decided to just split the difference and use an H buffer.
Just had her at the range to zero it and out of approximately 50 rounds, I had about 6 of these. Magazines were a mix of older pmags, new generation 20 round mags, and D&H GI mags. Ammo was Independence 55gr 5.56.
I've never seen this particular malfunction with an AR, but my gut says it is a buffer issue. Could it be a break-in issue?
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