Tiger Rock Ruger 10/22 V-Block Barrel Retainer/Stabilizer & Barrel Receiver Screws Black. It stabilizes the barrel and prevents any movement or drooping. Specifications for Tiger Rock Ruger 10/22 V-Block Barrel Retainer/Stabilizer and Barrel Receiver Screws: Manufacturer: Tiger Rock Color: Black Gun Type: Rifle Gun Model: Ruger 10/22 Fabric/Material: 6061-T6 Aluminum Finish: Matte Condition: New Quantity: 1 Features of Tiger Rock Ruger 10/22 V-Block Barrel Retainer/Stabilizer and Barrel Receiver Screws: V-Block width: 0.875"; Screw length: 1.6875" Package Contents: Tiger Rock Ruger 10/22 V-Block Barrel Retainer/Stabilizer and Barrel Receiver Screws Hex screws Allen wrench What firearm models does the manufacturer say Tiger Rock Ruger 10/22 V-Block Barrel Retainer/Stabilizer and Barrel Receiver Screws is compatible with? The manufacturer suggests that Tiger Rock Ruger 10/22 V-Block Barrel Retainer/Stabilizer and Barrel Receiver Screws is compatible with Ruger 10/22Tiger Rock VBL: Ruger 10/22 V-Block Barrel Retainer/Stabilizer & Barrel Receiver Screws Black