There is no definitive answer to this question as the length of an AR-15 lower receiver can vary depending on the manufacturer and model. However, the average length of a standard AR-15 lower receiver is approximately 7 inches (17.8 cm). Keep in mind that this measurement does not include the stock, buffer tube, or grip, so the overall length of your AR-15 will be slightly longer than 7 inches (17.8 cm) once these components are added. Thanks for taking the time to ask this question!
Matthew Answered question August 28, 2022