AR 15 Lower Build Kit

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AR 15 Lower Build Kit

Black Rifle Depot's Mil Spec AR 15 Lower Build Kit comes with everything you need to complete your AR 15 and variant lower receiver. The AR 15 Lower Build  Kit has a 6 position Mil Spec Stock with sling attachment and standard OEM AR 15 Lower Parts kit


  • Complete MIL SPEC Buffer Tube Kit W/Stock (American Made)
  • MIL SPEC LOWER PARTS KIT (American Made)
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Warranty Information

This kit comes with our LIFETIME WARRANTY* in the rare case you need one. Each part is personally inspected for quality and hand packaged to ensure your satisfaction. *Note: Warranty only valid when used with mil-spec lower, warranty does not cover use with 80% lower.
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270 Reviews

  • 5
    Lower build kits

    Posted by Dustin Henderson on Apr 27th 2022

    These kits are pretty basic but I've never had a problem with them . I would recommend this kit to anyone

  • 5
    Great build kit

    Posted by Scott on Apr 22nd 2022

    I looked around for something in stock and not over priced for a lower parts kit for my 6.5 G. Came across this one and ordered. Plan on preferring 2 more for my other / builds

  • 4
    AR 15 Lower Built kit

    Posted by Richard Jenkins on Apr 16th 2022

    Kit came with everything needed for me to assemble my lower with what parts I already had, As I purchase my parts to assemble my AR. The price for this kit was very reasonable. I cannot speak to the reliability of the parts yet as I have not tried to assemble the kit. I will attempt to update my review once I accomplish this. The parts in the kit seem to be of good quality.

  • 5
    AR Lower Parts Kit

    Posted by Richard Jenkins on Apr 11th 2022

    Although I haven’t yet put the kit to use it appears that the parts are quality parts and the price was very good! I’ve been slowly gathering all the parts I need to build my new AR myself as the other one I have was built for me. I want to experience the feeling of building one myself! This Lower parts kit will help me in my endeavor!

  • 5

    Posted by William gary on Apr 9th 2022

    Everything was perfect, and delivery was super fast! 100% will be ordering from them again.

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