All of us want something different for a specific AR15 build that we have in mind. The WarBlock Upper Builder web app allows you to pick and choose what components you want to include on your built-to-order stripped or complete upper and none of the ones you don’t. This can save you time, headache, and money when forced to remove parts you don’t want from a cookie cutter pre-built upper. The WarBlock Upper Builder also gives you a visual representation of what your upper will look like. Please click the “WarBlock Upper Builder” below, choose your gas sytem from the drop down menu, then click the “Build Your Own” button to enter the builder app and start building your custom WarBlock Upper now.