Black Rifles (AR15s) - 000 0023 - Mathusz Family Gallery

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This is an assembled Rock River Arms (RRA) 6.8SPC upper. I like it. The only negative is that is a 1:10 twist. I prefer 1:11 for a 6.8. I didn't mind the opened up feed ramps, but some people would have preferred true M4 ramps which do help in the 6.8.

File information
Filename:	000_0023.jpg
Album name:	regadmin / Black Rifles (AR15s)
Filesize:	50 KiB
Date added:	Jul 13, 2011
Dimensions:	500 x 375 pixels
Displayed:	695 times
URL:	https://mathusz.com/cpg/displayimage.php?pid=148
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