The SRS  Arca + pic enables someone to have a single rail to run a bipod, and a tripod off. Made from 7075 aluminum, it is 4” OAL, and has a bolt spacing of 1.2” to 3.0”. These come with a sling stud hole. We like to use these at the fore end, for shots at a decline where you utilize the tripod to support the gun in lieu of a bipod. You get 1.7” of arca rail and 2” of pic rail.  Weight is 1.0 oz.