NOTE: BECAUSE OF THE ADDITIONAL WIDTH OF THIS CLAMP, IT IS NOT COMPATIBLE WITH ALL AREA 419 ARCALOCK DEVICES. THIS INCLUDES, BUT IS NOT LIMITED TO: Garmin XERO Arms, RailChanger X. Area 419 are big ARCALOCK people, and think it's the best solution for most people trying to shoot mid- to long-range. Area 419 also knows that there are still a lot of rifles out there with Pic sections on the front end, or bipods that need to be used on both ARCA and Pic attachment points. Finally, Area 419 has a clamp that can do both - the ARCALOCK Dual Clamp. Precision milled from aerospace grade 6061-T6 aluminum and stainless steel, this Dual Clamp is versatile, adjustable, feature-rich, and 100% American Made Adjustable tension to ensure a great fit on either mounting surface "On/Off" ARCALOCK switch for ideal fitment on either Area 419 ARCALOCK Rails or ARCA rails from other manufacturers Hardened steel pins and grabbers for exceptional picatinny lock-up ARMS 17S attachment for use with common bipods from Atlas, Thunderbeast, MDT, Magpul, Harris (with adapter) and more!