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Old October 28, 2012, 09:16 AM   #12
Senior Member
Join Date: September 15, 2007
Posts: 1,707
I understand that the "remedied" 556R has a little steel horseshoe looking gizmo in the front of the mag well pressed into the aluminum to keep the wear from happening there.

Thanks guys.

I've been sitting on the fence about this in 223 cal, and your words have been encouraging.
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