Lost Parts Replacement Kit

(10 reviews) Write a Review

This kit includes the most commonly lost parts when working on your rifle. It's a must have for all builders.



  • 2x Buffer retainer springs
  • 2x Buffer retainers
  • 2x Extractor spring inserts
  • 2x Extractor springs
  • 4x Pivot/takedown detent pins
  • 4x Pivot/takedown detent springs
  • 2x Safety detent pins
  • 2x Safety detent springs

SKU: STAG300723


There is no FAQ for this product.


10 Reviews

  • 5
    Purchased left handed 5.56 and 308 Stag AR platforms as well as these parts. I am very happy with Stag products.

    Posted by Steve Luther on 24th Mar 2021

    I have purchased a left handed 5.56 and 308 Stag AR platforms as well 2 Nickel Boron BCG's and the lost parts kits. I am very happy with Stag products. I would like to purchase a Stag left handed 6.5 Creedmore upper and hope you get some in soon.

  • 5
    Stag Arms Spare Parts Kit

    Posted by John Charles Wesley on 18th Mar 2021

    I purchased the spare parts kit for when things go wrong. Broken, worn or lost parts and wanted the best parts for the best guns, Stag.

  • 5
    Lost parts replacement kit

    Posted by David Haller on 1st Feb 2021

    Quick delivery and very reasonably priced.

  • 5
    Parts kit

    Posted by Phillip Grider on 2nd Nov 2020

    This kit is very handy to have, at an unbeatable price. I getting one for each of my rifles. I would recommend this for anyone with an AR15.

  • 5
    Parts Kit

    Posted by Scott Reynolds on 11th Oct 2017

    Parts kit came complete as advertised, I haven't used it yet but I'm doing my 1st AR build and I'm sure it'll come in handy as I always loose stuff.

  • 5
    Must have for all you AR fans out there.

    Posted by Tom on 6th Oct 2017

    You ever lose a part or brake something while shooting or out in the field? I really sucks. Yes... Those kits are cheap and you can keep them in your bag. A must for everybody with ARs. Get them and buy a few of them.

  • 5
    Lost parts kit

    Posted by Michael Eugene Thornton on 30th Aug 2017

    I haven't YET but it happens in the worst place and the worst time. Without the part to replace the one you lost, you would have an expensive stick. Spend the few bucks and keep them in your field kit.

  • 5
    Necessary item

    Posted by Dave on 28th Aug 2017

    Don't build a AR without this kit. I didn't need it in the first on but lost a front pivot detent. On the next one I put together.
    Was happy I had it.

  • 5
    Lost Parts Kit

    Posted by Bill Richardson on 28th Aug 2017

    This kit is a godsend. After losing both takedown pin detents across the room (anyone who has built an AR15 knows EXACTLY how that happens), I purchased this kit. Luckily, I was able to get the detent in with the THIRD pin. Now I have extra parts - for the NEXT time it happens!