Gray Ops CNC Athlon Velocity PRO QD Mount Kit w/ Arca Black. Quickly and reliably attach/detach to any Picatinny Rail system or Arca clamp with our new patent pending QD system. Multiple Mounting Options allows you to tailor the Athlon to your exact needs on the fly. Specifications for Gray Ops CNC Athlon Velocity PRO QD Mount: Manufacturer: Gray Ops CNC Color: Black Finish: Hard Coat Anodized Features of Gray Ops CNC Athlon Velocity PRO QD Mount Push button-Quick Attach/detach from picatinny rails allowing for mounting on numerous platforms and positions. Due to its push button-quick detach from the arm it takes up less space for storage and travel. Package Contents: Gray Ops CNC Athlon Velocity PRO QD Mount Gray Ops CNC GO-ATHKITARCA: Athlon Velocity PRO QD Mount Kit w/ Arca Black