ARC-LR RRS-LOCK® Arca Quick-Release Lever Clamp: 40mm
Introducing ARC-LR: RRS's latest lever-release clamp featuring RRS-LOCK for seamless gear deployment and enhanced security. Experience auto-centering assurance with audible and tactile feedback. RRS-LOCK engages effortlessly with a 5mm steel pin, ensuring a snug fit for RRS-LOCK-equipped rails/plates. Enjoy ambidextrous operation with the butterfly latch and lever. Plus, adjustable tension makes ARC-LR compatible with a wide range of 3rd-party Arca-Swiss style quick release plates. It's the epitome of precision and versatility in a clamp.
As of 2020, all clamps feature an updated attachment style and will not sit flush with older ball heads. To resolve this, please refer to our Clamp Rosette Adapter.
Features
RRS-Lock System adds centered-indexing and safety-stop features to compatible RRS 1.5” Standard rails and clamps, preventing unintentional movement with a 5mm steel pin
R-Mount interface prevents twisting and play between ARC-LR and RRS head, ensuring stability over time
Easy top-loading allows quick transition from closed to fully open clamp positions for effortless attachment
Increased security with a secondary latch to prevent accidental opening of the lever
Visual lock confirmation instantly verifies clamp status for added peace of mind
Adjustable clamp tolerance accommodates various 3rd party Arca-style plates or rails for enhanced versatility
Dimension | Measurement |
---|---|
Jaw Length | 1.57" (40mm) |
Width | 2.55" (65mm) |
Height | 0.69" (18mm) |
Weight | 4oz (114g) |
Center hole | 3/8"-16 |
Outter holes | 1/4"-20 *spaced 30mm apart on center |
Country of Origin | ![]() |
What's in the box?
(1) ARC-LR clamp
(1) Flat Head Screw, 1/4"-20 x 1.25" Long
(1) Flat Head Screw, M6-1.0 x 25mm
(1) 5/32" Hex Key
(1) QR Manual Card

ARC-LR RRS-LOCK® Arca Quick-Release Lever Clamp: 40mm

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