Anarchy Outdoors Dragonscale M6x1 Bolt Knobs Black Fluted. These bolt knobs will fit any rifle with a M6 x 1mm threaded bolt handle. Specifications for Anarchy Outdoors Dragonscale M6x1 Bolt Knobs: Manufacturer: Anarchy Outdoors Condition: New Color: Black Features of Anarchy Outdoors Dragonscale M6x1 Bolt Knobs Accuracy International AE AW and AX; Bergara B-14; Blaser R8 Blaser R93; Browning Maral; Chapuis Rols; CZ 455 CZ 457 CZ 550 CZ 557; Lithgow LA101 Lithgow LA102; Mauser M12 Mauser M18; Merkel Helix; Sauer 100 Sauer 101 Sauer 200 STR Package Contents: Anarchy Outdoors Dragonscale M6x1 Bolt Knobs Anarchy Outdoors 791617488595: Dragonscale M6x1 Bolt Knobs Black Fluted