The Tiger Rock Inc. A2SPACER + A2SCREW is designed for seamless conversion of A1 buffer tubes to A2 configurations, ensuring enhanced shooting performance. Manufactured from robust T6-6061 aluminum with a stylish black anodized finish, this Mil-Spec fixed stock adapter and screw pair is engineered for durability and compatibility with AR-15 setups. Mil-Spec quality construction A2 Spacer length: 1.0625 inches T6-6061 aluminum material Black anodized finish Compatible with AR-15 A2 Screw length: 1.625 inches Matte Black finish for aesthetic appeal Fits A1 fixed position buffer tubes Elevate your firearm setup with this essential accessory for a reliable and stylish conversion.