Hello - We're sorry to hear that your staple gun isn't performing as it should. Make sure you're using the best staple length for the application. Here's a link to our staple guide for more information: https://bit.ly/3fJdrRS. If you need additional help or believe your staple gun may be defective, in which case we can replace it under the warranty, please contact us at customercare@arrowfastener.com or 800-776-2228. - Your Arrow Fastener Team