Really Right Stuff: SC-ARC Adapter

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The R-LOCK feature in the clamp is a 5mm pin that mates with corresponding R-LOCK holes in the rail. The pin is spring-loaded to automatically engage the R-LOCK holes or be pushed down by non-R-LOCK rails, making it compatible with a wider range of “arca-type” rails. The user also has the option to disengage the pin at their discretion for rapid re-positioning. The SC-ARC easily attaches to RRS-compatible dovetails and sections of Picatinny. Designed so users can attach directly to any ARMS-17S compatible bipods or any other application requiring the ARMS-17S platform.


  • R-LOCK System
  • Easy Top-Loading - In one quick action, the clamp can go from closed to fully open, allowing easy top-loading of RRS Dovetail and arca-swiss compatible quick-release plates
  • Visual Confirmation of Lock Position


 Compatible Bipods:

  • B&T Industries’ Atlas A.R.M.S.-17s bipods
  • Thunder Beast Arms TBAC
  • Magpul A.R.M.S. 17S Style
  • All other A.R.M.S.-17S applications



  • Jaw Length: 1.97"/ 50mm
  • Width: 2.94"/ 74.6mm
  • Height: 0.7"/ 17.4mm
  • Weight: 3.8oz/107g including hardware