Anarchy Outdoors Bottom Metal w/Barricade Stop CZ 457 Black CZ-457-BM. Each piece is manufactured from 7075 aluminum and anodized black to add that flare to your competition .22 rifle. The bottom metal adds rigidity for increase accuracy as the user can tune the accuracy by adjusting the torque on the action screws.The biggest game-changer with this the integrated barricade stop. By having it built as part of the bottom metal it provides extra strength and rigidity.Included with the package is an additional extra our own extended magazine release to aid in quick change out of your magazine while maintaining your eye on the target during mag change outs. Specifications for Anarchy Outdoors CZ 457 Bottom Metal: Manufacturer: Anarchy Outdoors Condition: New Color: Black Fabric/Material: 7075 Aluminum Gun Model: CZ 457 Dimensions: 7.1 x 1.8 x 0.7 in Caliber: .22 Long Rifle Gun Make: CZ Package Contents: Anarchy Outdoors CZ 457 Bottom Metal What firearm models does the manufacturer say Anarchy Outdoors CZ 457 Bottom Metal is compatible with? The manufacturer suggests that Anarchy Outdoors CZ 457 Bottom Metal is compatible with CZ 457Anarchy CZ-457-BM: CZ 457 Bottom Metal with Barricade Stop Black