Product Description The TacFire A2 Mil-Spec Buffer Tube Kit is designed for AR-15 rifles chambered in .223 Remington/5.56x45mm NATO and allows the acceptance of a standard A2 rifle stock (stock not included). It&&';;s ideal as a replacement for a damaged stock system or for converting from a 6-position collapsible setup to a fixed A2-style configuration. This kit includes the key components needed for an A2-style rifle buffer system, including a 12.75" action spring and a 6" buffer. Product Highlights A2-style Mil-Spec buffer tube kit for AR-15 .223 Remington / 5.56x45mm NATO rifles Designed to accept a standard A2 rifle stock (A2 stock not included) Great for replacing a damaged stock system or converting from a 6-position stock setup Includes rifle-length action spring (12.75") and buffer (6") Black finish for a classic AR-15 rifle build appearance Specs Brand: TacFire Manufacturer Part Number: MAR110 UPC: 811261026490 Platform / Fit: AR-15 Compatible Calibers: .223 Remington / 5.56x45mm NATO Style: A2 (rifle) / Mil-Spec Color: Black Included Components: Buffer tube, spring, buffer Spring Length: 12.75 in (12-3/4") Buffer Length: 6 in Weight: 11.9 oz Material: Aluminum (buffer tube) Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&&';;s manufacturer.