XTS AR-15 Heavy Buffer Black. Weighing approximately 4.54.7 ounces this heavy buffer slows bolt carrier movement to reduce felt recoil minimize bolt bounce and promote smoother operation in compatible AR-15 platforms. Ideal for rifles with over-gassed systems carbine-length gas systems or suppressed setups the BUFFER-HW provides enhanced reliability while maintaining the durability needed for high-round-count use. Whether youre fine-tuning a competition rifle upgrading a duty firearm or improving your everyday range setup the XTS BUFFER-HW Heavy Buffer is a simple yet effective upgrade for smoother more consistent performance. Specifications for XTS AR-15 Heavy Buffer: Manufacturer: XTS Color: Black Gun Make: AR Platform Gun Model: AR-15 Handle Color: Black Features of XTS AR-15 Heavy Buffer: Compatibility: Fits Mil-Spec AR-15 Buffer Tubes Material: Precision Machined Steel Construction Application: Reduces Recoil Improves Cycling and Helps Minimize Bolt Bounce Package Contents: XTS AR-15 Heavy Buffer What firearm models does the manufacturer say XTS AR-15 Heavy Buffer is compatible with? The manufacturer says that XTS AR-15 Heavy Buffer is compatible with AR-15XTS BUFFER-HW: AR-15 Heavy Buffer Black