Tapco AR-15 Rifle Buffer Black. Weighing in at 5.2 ounces this buffer is meticulously crafted from high-quality 7075 T6 Aluminum ensuring durability and longevity. The rifle designation indicates its optimal weight for carbine-length buffer tubes and gas systems effectively reducing bolt bounce and felt recoil for smoother cycling. Precision-engineered and anodized black for a sleek finish this buffer is designed to Mil-Spec dimensions. Specifications for Tapco AR-15 Rifle Buffer: Manufacturer: Tapco Color: Black Finish: Anodized Fabric/Material: Aluminum Gun Make: AR Platform Gun Model: AR-15 Weight: 5.2 oz Condition: New Buffer Tube Size: Mil-Spec Tapco TAP22055 Rifle Buffer Black Aluminum AR-15 What firearm models does the manufacturer say Tapco AR-15 Rifle Buffer is compatible with? The manufacturer says that Tapco AR-15 Rifle Buffer is compatible with AR-15Tapco TAP22055: AR-15 Rifle Buffer Black