Tiger Rock AR-10/LR-308 Takedown and Pivot Pins Black Small. 308 Takedown Pin and Pivot Pin securely locks into and holds the upper and lower receivers in place. Specifications for Tiger Rock AR-10/LR-308 Takedown and Pivot Pins: Manufacturer: Tiger Rock Finish: Melonite Color: Black Fabric/Material: 8620 Alloy Steel Gun Make: AR Platform Gun Model: DPMS LR-308 AR-10 Gun Type: Rifle Package Contents: Tiger Rock AR-10/LR-308 Takedown and Pivot Pins What firearm models does the manufacturer say Tiger Rock AR-10/LR-308 Takedown and Pivot Pins is compatible with? The manufacturer suggests that Tiger Rock AR-10/LR-308 Takedown and Pivot Pins is compatible with AR-10 DPMS LR-308Tiger Rock TP-PIN-308: AR-10/LR-308 Takedown and Pivot Pins Black Small