AR 15 Lower Build Kit

10 customer reviews


In stock


Lower Build Kit Parts:

  • AR Complete Lower Parts Kit
  • M4 Stock (Mil-Spec)
  • 6 Position Adjustable Buffer Tube Assembly Kit (Mil-Spec)

Additional information

Weight 6270317096 g

10 reviews for AR 15 Lower Build Kit

  1. Daniel

    Great standard lower part kit

    Great standard lower part kit. Great price and fast processing and shipping. I only wish a KM decal would have came with it, wanted to add it to my collection on my gun case.

  2. Rt

    Ar lower kit

    Works great feels nice

  3. Grumpy (verified owner)

    Piece of cake

    All parts were well made, assembly was easy. The final product looked and functioned like a factory build. Will purchase more!

  4. Jeff (verified owner)

    Great LPK with a Stock!

    Everything you need for your lower, including a nice stock kit. This is a very cost effective kit to finish off your lower receiver. Add a complete upper and head to the range. Job done! Thanks KM.

  5. SGM Dan

    Good price, good enough

    Installed this on a polymer lower. Everything fit well, and the trigger is actually not bad for a standard mil-spec. Only “kinda” gripe I had was that the hammer spring seemed to be a bit too easy to bend out of shape when fitting the hammer. But it still works fine. For the price, not bad at all.

  6. Mark Myers

    5 stars for the value of this kit. Everything fit and worked fine. The trigger group polished up ok. With a set of JP reduced power springs and a adjustable grip screw the trigger worked very nice. The buffer was the correct weight.
    I would buy this kit again

  7. Carl Jones (verified owner)

    I have purchased two of these kits in the last few months. The first was missing the mag release plunger and the second kit was missing the stock assembly. So, why did I give it a five star review. Because, even when a small shipping mistake is made, KM Tactical follows through with the best customer service ever. Each time I either sent an email or spoke on the phone (which is always answered promptly) I got nothing but great service. The missing parts were shipped out the next day with no questions asked, no bad attitude. Everybody makes mistakes, especially during this Covid crap that happening now. What makes KM shine is the customer service that is above and beyond all the rest. I will never hesitate to purchase from KM and am very happy with the parts kit also. Parts fit and function perfectly and are at a great price.

  8. Chris McMullen (verified owner)

    Everything went together with no issues. Very happy with this kit

  9. Robert Burrow (verified owner)

    Outstanding package of lower parts kit plus! KM always brings it with low prices and fast shipping.

  10. Robert Burrow (verified owner)

    KM Tactical is my “go to” for any firearm parts needs. Fast shipping and great prices. Of course, quality products that work fantastic.

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