Tiger Rock AR-15 Drop in Trigger Guard Anodized Black Small. Easy installation with included screws. Specifications for Tiger Rock AR-15 Drop in Trigger Guard: Manufacturer: Tiger Rock Gun Make: AR Platform Gun Model: AR-15 Finish: Anodized Fabric/Material: 6061 Aluminum Package Contents: Tiger Rock AR-15 Drop in Trigger Guard What firearm models does the manufacturer say Tiger Rock AR-15 Drop in Trigger Guard is compatible with? The manufacturer suggests that Tiger Rock AR-15 Drop in Trigger Guard is compatible with AR-15Tiger Rock TGV: AR-15 Drop in Trigger Guard Anodized Black Small