Area 419 Arcalock Dual-Clamp with Picatinny Black. THIS INCLUDES BUT IS NOT LIMITED TO: Garmin XERO Arms RailChanger X.Area 419 are big ARCALOCK people and think its 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 hasa 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 100percent made in specialized factoriesAdjustable tension to ensure a great fit on either mounting surfaceOn/Off ARCALOCK switch for ideal fitment on either Area 419 ARCALOCK Rails or ARCA rails from other manufacturersHardened 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 Specifications for Area 419 Picatinny Arcalock Dual-Clamp: Manufacturer: Area 419 Fabric/Material: 6061-T6 Aluminum Color: Black Features of Area 419 Arcalock Dual-Clamp with Picatinny: Adjustable Tension On/Off ARCALOCK Switch Hardened Steel Pins Grabbers for Exceptional Picatinny Lock-Up ARMS 17S Attachment Precision Milled from Aerospace Grade 6061-T6 Aluminum Package Contents: Area 419 Picatinny Arcalock Dual-Clamp Area 419 419ALKDC: Arcalock Dual-Clamp with Picatinny Black