Big Ben wrote:The etch is the 512 and the rifle is the 15x which does have the Troy rails even though everything is s&w branded.
If it was me.. and its not.. I would pass. the 512 is old ( i have one on my M&Pt15) but would rather have one of the newer ones with the side on off and the BDC for long range shots. I also have the G3 flip to side 3x on it and really would like the side on off. again either way.. let us know I think the SWMP is a good gun,, the trigger is ok at best but I still like the gun