JE Machine Tech

JE5 AR-15 Lower Build Kit

(34 reviews) Write a Review
Calculated at Checkout
MSRP: $129.99
— You save $40.04


JE5 AR 15 Lower Build Kit

The JE5 AR 15 Lower Build Kit from Black Rifle Depot is the ultimate solution for those seeking a lightweight and high-quality lower build. The JE5 Mil-Spec AR 15 Stock is manufactured in the United States from high-grade polymer, making it a durable and long-lasting upgrade to your AR 15 build. The skeletonized design reduces weight, while the removable rubber butt pad and ambidextrous QD swivel mount offer comfort and versatility. This kit includes the JE5 AR 15 Stock Kit with AR 15 buffer tube assembly and a complete 31-piece AR 15 Lower Parts Kit, providing everything you need to finish your lower build. With a mil-spec design and American-made quality, the JE5 AR 15 Lower Build Kit is the perfect choice for your next build.


  • Includes JE5 Mil spec Stock (American Made)
  • Includes Complete Mil Spec Lower Parts Kit (American Made)
  • Includes Mil Spec Buffer Tube Kit (American Made) Limited Lifetime Warranty 
    • 6-position 6061-T6 Aluminum Receiver Extension
    • 3 oz Buffer
    • Castle Nut & End Plate
    • Carbine Spring
View AllClose

Warranty Information

This kit comes with our LIMITED 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.
View AllClose

34 Reviews

  • 5
    JE5 AR 15 Lower Build Kit

    Posted by Jason Bryant on Nov 15th 2022

    Great product for the price. I really like the butt stock.

  • 4

    Posted by Jovan Daggs on Jan 13th 2022

    Simple but try boot kitha r 2 lower arts kit pulled old one out and used this one buffer tube and brace a little wobbly

  • 5

    Posted by Robert on Jan 9th 2022

    Everything fit and functioned as expected. Good quality parts!

  • 5
    Lower build

    Posted by AR BUD on Aug 27th 2021

    My 5th build ,finished today. All parts fit perfectly. Would highly recommend this kit

  • 5
    JE5 AR 15 Lower Build...

    Posted by Tim on Jun 15th 2021

    Matched up good with a Hybrid 80 lower topped with a Bear Creek Arms 7.62x39 for a very nice AR-47

View AllClose

Explore Black Rifle Depot's impressive selection of AR15 parts and AR15 parts kits, all available at discounted prices. Whether you want to enhance your current setup or embark on a new build, they offer a wide range of high-quality components to meet your needs. With their affordable prices, you can upgrade your AR15 without stretching your budget. Step into the world of Black Rifle Depot and discover how you can elevate your AR15 experience.