Home AR-15 How to Build an AR-15 Lower Receiver Presented by Larry Potterfield of...

How to Build an AR-15 Lower Receiver Presented by Larry Potterfield of MidwayUSA

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Building a standard AR-15 Lower Receiver is pretty straightforward. Watch as Larry Potterfield, Founder and CEO of MidwayUSA, shows how it’s done. Starting with an explanation of the tools required, from the lower receiver action block to all the taps and drill bits, the use of each tool is explained in detail. The build begins with an inspection of the lower receiver, followed by the installation of the trigger guard. Next, the magazine release, bolt stop and detent pins are installed, followed by the hammer, trigger and safety. The buffer tube assembly and buttstock complete the build of the lower receiver.

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22 COMMENTS

  1. Mr. Potterfield , thank you sir (And thanks to MidwayUSA, of course) for the outstanding video for assembling the AR-15 lower receiver. Also, many thanks for mentioning safety glasses first thing in your listing of required tools, you've undoubtedly saved countless people's eyesight. Keep up the good work.

  2. Essential minimum tools (in my opinion) for assembling an AR are

    1. Armorer's Wrench
    2. Torque Wrench (not necessarily needed, but I prefer it)
    3. Punch set
    4. Upper and lower Vise blocks (only needed if you have a vise)
    5. Vise (again, not needed unless you wanna tighten by hand)

    Thats it. Unless you're gonna go the 80% route, then you'll need a jig, the right drill bits (not gonna name them all), and preferably a drill press over just a drill.

  3. Thank you very much, this video helped me build my first AR-15 lower a few years ago, I downloaded it to my home server for future instruction, and in case the hippies at youtube delete it in there attempt to destroy the Second Amendment. Knowledge is power and without all of the pro gun people on youtube sharing there knowledge of safety, maintenance and building of firearms it would be a great deal harder to continue our wonderful hobby, so thank you and keep the videos coming.

  4. He mentions be careful of the ears that hold on the trigger guard for a reason, I have never broken one but am always nervous because most receivers are made of 7075 aluminum which is very strong but it is NOT weldable, not with any welding process so do use caution.

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