Ultralight ARCA Swiss Rail for MLok Rails - R-Lock - BLACK - LONG

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With the rise in popularity of tripod shooting and hunting, the need to adapt rifles with MLok forends and rails to work with high-end Arca-Swiss ballheads and fixtures arose. Machined with tight tolerances, rigid quality inspection and hand-gauged with tooling supplied by Really Right Stuff / RRS, the ANNEX Arca-Swiss to MLok rails have integrated hard-stops at the end of the rails to prevent the rifle from sliding off the ball-head / tripod, integrated threaded holes to install your own stop-points at various locations with the included screws, and are CNC machined from a solid block of aerospace-grade aluminum.

FEATURING REALLY RIGHT STUFF R-LOCK Technology / also compatible with older / legacy non-RLock compatible tripod heads / clamps

  • 4.68" Overall Length
  • Integrated R-Lock Holes & still reverse compatible with all non-RLock Heads
  • 50 grams / 1.76oz without MLok Hardware
  • Requires three MLok Slots
  • Genuine Magpul Mlok Nuts / Hardware


  • 5
    Quality rail at an excellent price

    Posted by Steven on May 18th 2023

    Super impressed with the quality. Hardware is as good as it gets and the extra length from this version is useful for my larger AR-10 Build. Will be grabbing more.