ALPHA Lower Build Kit For AR-15

15 reviews Write a Review
Calculated at Checkout


The Alpha AR 15 Lower Build Kit manufactured by Trinity Force is a light weight AR 15 Stock made of a high quality polymer. It has a integrated rubberized cheek rest and QD swivel mount attachment point. These kits come with everything needed to complete your AR 15 Lower Receiver. 

Kit Includes:

  • Includes Complete Mil Spec Trinity Force Stock & Buffer Kit
  • Includes Complete Mil Spec Lower Parts Kit (OEM)
  • Lifetime Warranty

Extra Information


15 Reviews

  • Posted by Ronnie Smithson on Nov 21st 2019


    Good fit I loved it

    Will buy again

  • Posted by Mike Butler on Nov 7th 2019


    Alpha lower kit

    Shipped quickly and fit and finish were great! Will buy it again for the next build.

  • Posted by Matt on Oct 30th 2019


    Alpha lower build kit

    Fast delivery. Everything looks and fits great. Thank you.

  • Posted by Eric Leggett on May 21st 2019


    Great Value for what you get

    Purchased this kit to complete my stripped lower. All the parts fit nicely took 30min to complete. Only issue is that the buttstock has slight rotational movement My AR 7.62x39build looks really good

  • Posted by mike on May 13th 2019


    good product

    Readonably priced works well

  • Posted by Scott on Apr 2nd 2019


    Alpha lower build kit

    Nice kit, packaged well, timely delivery, what more could you want.

  • Posted by Carlos AguirreSobero on Mar 18th 2019


    Alpha Lower Build Kit

    Everything came is in a timely manner and it worked perfectly.

  • Posted by Brian on Mar 14th 2019


    Not real pleased

    Threads on castle not are very sloppy and either reciever end plate or buffer tube needs work, hard to keep straight when tightening not, quality control needs attention

  • Posted by Dschnip on Mar 7th 2019


    Anderson LPK

    The kit went together great. My biggest complaint is that the castle nut must not have been tapped correctly as it will not sit anywhere near flush. There is a little more wobble in the butt-stock than I would like. Everything else though gives this a 4 star.