MILSIG M17 XDC + RAP4 box mag with squarehead conversion

Just a short little vid of my M17 XDC in action. I’m running a RAP4 box magazine Gen. 4 Nautilus drive with homemade squarehead conversion. Pardon the shaky video. ( Skip ahead to 4:25 is you just wanna see it shoot ) EXPAND FOR BUILD INFO Conversion build can be found here: #post780551 MILSIG XDC #122 Paradigm Pro Shroud (Paradigm LE shroud) swap Lapco 14“ .687 barrel (Lapco 9“ .687 barrel) MILSIG Gangst