Tiger Rock AR-15 Collapsible Stock Buffer Carbine Length 3.0 Oz Gold Small. Specifications for Tiger Rock AR-15 Collapsible Stock Buffer: Manufacturer: Tiger Rock Gun Make: AR Platform Gun Model: AR-15 Features of Tiger Rock AR-15 Collapsible Stock Buffer Reciprocating Weights Drop-in installation Package Contents: Tiger Rock AR-15 Collapsible Stock Buffer What firearm models does the manufacturer say Tiger Rock AR-15 Collapsible Stock Buffer is compatible with? The manufacturer says that Tiger Rock AR-15 Collapsible Stock Buffer is compatible with AR-15Tiger Rock B30-GD: AR-15 Collapsible Stock Buffer Carbine Length 3.0 Oz Gold Small