RS Regulate recently introduced their new line of shotgun light mounts. Their new BM-12G mount attaches to the magazine tube of most 12 gauge shotguns and their new BM-12 attaches to the barrel of Vepr and Saiga pattern 12 gauge shotgun barrels. They include a 4 slot 1913 rail and attach via a clamp system that allows you to adjust it to whatever angle you prefer. They’re made out of 6061-T6 aluminum with the BM-12 weighting in at 1.05oz and the BM-12G at 1.15oz. They currently retail for $60, check them out over at RSRegulate.com.