[ARCHIVED THREAD] - AR ftf question

Posted: 10/17/2010 4:15:48 PM EDT

I have a new 16" upper and it doesnt like to reliably load 5.56. I have put maybe 50 rounds through it, could this be a teething issue? Needs to be broken in? I charge it and it has a ftf ever 2 or so rounds. The bullet has definate scratches in it. It looks like the feed ramps are doing it. It is a 16" m4 profile upper. Whats the problem?

Posted: 10/17/2010 4:16:53 PM EDT

[#1]

Do you have an M4 upper and regular feedramps?

Or maybe the other way?

Posted: 10/17/2010 4:17:50 PM EDT

[#2]

Brand?? Type of ammo?? What type of mag??

Posted: 10/17/2010 4:20:39 PM EDT

[#3]

Try different magazines and ammo first. Sometimes that helps.

Posted: 10/17/2010 6:06:56 PM EDT

[#4]

GI and pmags. Winchester 556. Federal M855. I think i have m4 ramps, although its kind of hard to tell.

Posted: 10/17/2010 6:08:20 PM EDT

[#5]

try tightening the mag catch a half turn

[ARCHIVED THREAD] - AR ftf question

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[ARCHIVED THREAD] - AR ftf question

[ARCHIVED THREAD] - AR ftf question