Matador Arms The Sidewinder AR-15 Pistol Grip Buffer Tube Black 0.75in x 1.4in x 1.8in. It's lightweight strong and reversible so that you can fold in either direction and know it'll stay put. Specifications for Matador Arms The Sidewinder Buffer Tube: Manufacturer: Matador Arms Color: Black Finish: Anodized Fabric/Material: Aluminum Gun Make: AR Platform Gun Model: AR-15 Gun Type: Rifle Pistol Length: 1.25 in Condition: New Dimensions: 0.75x1.4x1.8 in Features of Matador Arms The Sidewinder Buffer Tube Compatible with: Chassis systems Shotguns AKs Scorpions Vectors Rifles/pistols that accept AR Buffer Tube Threads Stock adapter is not included and may be required depending on firearm model. Will not work with AR rifles. Package Contents: Matador Arms The Sidewinder Buffer Tube What firearm models does the manufacturer say Matador Arms The Sidewinder Buffer Tube is compatible with? The manufacturer suggests that Matador Arms The Sidewinder Buffer Tube is compatible with AR-15Matador Arms MAC744: The Sidewinder AR-15 Pistol Grip Buffer Tube Black 0.75in x 1.4in x 1.8in