Picatinny Gun Rail Mount for 1/4" Thread HD Cameras Compatible with Bullet HD PRO w/ aluminum mount adapter, Contour+ w/ universal mount adapter, ContourROAM, Replay XD, CamOne Infinity, GoPro HD HERO w/ tripod adapter, all digital cameras, and more! Mounts to any camera with a 1/4 x 20 thread Matte black hardcoat anodized finish CNC machined 6061-T6 aluminum Works on all picatinny rails