Uncle Mike's Swivel Attachment Fixed Black Picatinny Clam. With undeniable quality and a relentless level of dependability an Uncle Mikes Swivel Mount gives you added flexibility without sacrificing an ounce of ruggedness in your setup. The Uncle Mikes Picatinny Swivel Mount is compatible with Rapid Pivot Bipods or Tripods. With Uncle Mike's level of battle-grade quality you can trust that Uncle Mikes Swivels will deliver the best performance possible when it matters most. Specifications for Uncle Mike's Swivel Attachment Fixed: Manufacturer: Uncle Mike's Color: Black Fabric/Material: Steel Features of UMLE Rapid Pivot Swivel Attachment 14 050 21 011: Works with Picatinny-style Accessory Rails Ideal for use with Rapid Pivot Tripds or Bipods (sold separately) Package Contents: Uncle Mike's Swivel Attachment Fixed Uncle Mike's 14050: Swivel Attachment Fixed Black Picatinny Clam