The patent pending Tech Ten Tactical B5 Enhanced SOPMOD stock Insert adds another QD attachment point to your B5 Enhanced or Government SOPMOD stocks. If you own this stock with or without a QD attachment point, then this insert is for you. Once the insert is installed in the front of the stock it places your sling in the ideal location, away from your pistol grip and not at the rear of your stock. Also, it allows your sling to pivot up to 220 degrees when used with the Ten Tech Tactical Swinger Sling Mount (sold separately) or up to 140 degrees with a standard QD. Installation is quick and easy. B5 Insert Features Adds a QD attachment point to the front of the B5 Enhanced SOP Mfg: Tech Ten Tactical