I just bought a Olight Valkyrie to mount via picatinny rail to my magpul forend. I like the forend mount as its easy to hit the light on switch with my left index finger while maintaining full control. The forend mount however is set back and casts a barrel shadow which it a bit distracting. It also eliminates a portion of the light that is thrown. I have seen the dual rail adapter kit that screws in over the endcap like the one here . https://defendertactical.com/products/dual-rail-mossberg-590-series. Does anyone have any experience with these? It would move the light into a forward position and eliminate the barrel shadow but it would be awfully close to the business end of the barrel. I'm not a huge fan of the TL Racker or the other forends with built in lights. I prefer to have something removeable and lighter. I appreciate any feedback.