GETTING MY FRT-15L3 TO WORK

Also anyone know someone who does amazing engraving that can make me a 3rd posture marking with a Aero M4E1 decrease to match the Harmless and fireplace markings model it's got? Or a decent vinyl sticker which can go there if all else fails."Here is the modification necessary to get the Better-Mag S&W Adapter to operate with the CMMG Sear Excursion