The Middle Aged Gamer shows how to install the Guns Modify MWS SCAR-L NPAS... "During my Review of the Guns Modify Scar-L MWS GBBR we discovered the FPS is on the high side for CQB games so an NPAS was needed. Due to the unique design of this MWS GBBR I made this video showing you the basics of how to do it. the principle of this video is the same regardless of what NPAs you want to use."