Sling Control Retract (shooting for release on March 15th!) will be configurable based on your rail setup.
SC-R has a retractable shock cord system so you can quickly deploy your sling and not worry about the sling retainer getting in your way.
There will be multiple mounting options for the Cord Retract System (CRS) on MLOK rails, and a 1913 CRS for pic rails. The MLOK CRS also has a zip-tie mountable base in case you don't have MLOK slots where you want it located. Enough shock cord will be included to play with different options.
Also coming standard on the new SC-R will be a knock-out cover hiding a Multitasker Tools Nano tool dock