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Really Right Stuff B2-LR II 60mm Dual Mount Lever-Release QR Clamp B2-LR-II


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The B2-LR-II by Really Right Stuff was designed to provide a sturdy interface between your camera/lens and tripod. Attaching your camera/lens to a typical ¼”-20 screw is not only tedious and insecure, but also allows the camera/lens to freely rotate with nothing preventing it from coming loose. The B2-LR-IIsolves this problem with a 2-part system: a quick release clamp and a quick release plate. The clamp jaws open and close in one of two ways: by rotating a knurled knob on the screw-knob clamps, or by flipping a single level on the level release clamps. In addition, the B2-LR-II features dual mounts: a center socket is countersunk on top but also threaded 3/8"-16. Mount by spinning onto an exposed threaded 3/8" post or with flat head screw from above (accept M6 or 1/4"-20, not 3/8"). These clamps are appropriate for mounting on: any head or platform with exposed 3/8"-16 threaded post can drop onto a female socket tapped 1/4"-20 (for any RRS head) or metric 6 (for all others; all screws sold separately), any head or platform with exposed 1/4"-20 threaded post - install a reducer bushing into the socket hole of the clamp, any head or platform with 3/8"-16 female socket


  • Easy Top-Loading: In one quick action, the clamp can go from closed to fully open, allowing easy top-loading of Arca-Swiss-compatible quick-release camera and lens plates; no more lost shots while fumbling to feed the plates into the end of the clamp
  • Visual Confirmation of Lock Position: You can readily observe if the lever is locked, half-open or fully open
  • Low Profile: The lever does not protrude above or below the top or bottom of the clamp, and, in the closed position, the lever closely hugs the contours of the clamp; this makes it less of a "weed catcher" in the field and reduces the chance of being damaged in a fall
  • Less Abrasive, No Twisting: The smooth contours of the lever are less abrasive than standard knurled knobs, and for those with arthritic hands, the graceful lever cams open and closed with just finger force
  • Super Tough, Reliable: The Stainless Steel lever delivers a lifetime of wear and rides on a self-lubricating, wear-resistant bronze bearing surface. Delivers 50lbs of holding power under full compression (the fully closed position) with our plates; this is more than sufficient for any practical photographic application
  • Laser Engraved for precise and repeatable positioning


  • Jaw Length: 2.4"/ 60mm
  • Width: 3.4"/ 86mm
  • Height: 0.6"/ 15mm
  • Weight: 5.3oz/ 150g
  • Center hole threaded 3/8"-16
  • Outer holes threaded 1/4"-20 spaced 30mm apart on center

  • Specifications

    • Item ConditionNew
    • UPC818413023048
    • MPNB2-LR-II

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