Ruger SSR-556

[Z-Michigan]

Thanks 1858, will do. My friend's POF has the POF factory quadrail (version circa 2007 or 2008 - I believe it's been changed recently) plus a VFG and a light mount. Not a ton of stuff, but a little. Like I said, it's not as unbalanced as the Ruger, but it's definitely heavier out front than my DD upper with a 12" Omega-X quadrail. That mags that don't seem to work for him are Tangodown ARC, which have been flawless in my rifles.