How to make a Polymer AR-15 Lower at Home

    Sebastian and a friend have described in detail their latest successful attempt at making an AR-15 lower at home. They used a CNC mill to machine the lower out of a block of Delrin.

    Neither of the pair were machinists. Anyone with enough motivation can learn how to make an AR-15 at home. If you can’t afford a CNC mill, you could always build one yourself.

    Steve Johnson

    I founded TFB in 2007 and over 10 years worked tirelessly, with the help of my team, to build it up into the largest gun blog online. I retired as Editor in Chief in 2017. During my decade at TFB I was fortunate to work with the most amazing talented writers and genuinely good people!