Sylvan Arms

Premium Quality and Affordability

Buffer Retaining Nut

(4 customer reviews)


You will need our buffer retaining pin to install this unit. If the on on your folder is damaged or bent you may want to purchase another.

Availability: In stock

SKU: BRN100 Category:

Buffer Retaining Nut – Our Buffer Retaining Nut was designed to replace the buffer retaining pin in our Gen 3 Folding stock adapters. By threading the buffer retaining nut into our folding stock adapter, it provides a more reliable alternative to the buffer pin design that holds your buffer in place. NOTE: If you have a bolt diameter larger than 15/16 .937 in. this will not work with your firearm.

Will not fit Gen 4 Folder

Product Details

Material: Steel
Width: .201 in.
Inside Diameter: .953 in.

Instructions for install are provided below

  • Remove hex head screw, spring and pin from underneath the folding stock adapter.
  • Begin threading the buffer retaining nut into the folding stock adapter with the indents facing towards the “do not fire while open” side of the adapter.
  • Once threaded until flush with the folding stock adapter, you can tighten the buffer retaining nut into place using the indents with snap ring pliers.
  • Note, The buffer retaining nut will cover the hole where the buffer retaining pin goes.
  • After tightening, reinstall the buffer retaining pin, spring and screw underneath the folding stock adapter to prevent the buffer retaining nut from backing off.

If you need buffer retaining pins click Here

If you have any questions, feel free to contact us!

4 reviews for Buffer Retaining Nut

  1. Walter

    After having issues with the retaining pin breaking that came with my folder I contacted the company and within a day or two I had the fix for the problem. They sent me a new Buffer Retaining Nut which was easy to put in (15 min). I did about 10 minutes of manual bolt pulls and did not feel any tugging and scraping. The next day I had a carbine class to teach so I let the students use my AR. Different shooters different ammo. They shot about 500 rounds through the gun with no issues. This is the fix for the broken pin issue. The nut stayed in place with a little blue locktite as a back up. Great customer service and a great product.

  2. Rochelle

    After a routine check on my AR I noticed the pin on my folding adapter was bent severly. Contacted Sylvan. Shout out to Alex for the quick response to get the retainer nut to me. This is hands down the best solution for those having bent pin issues. Fired about 200rds through it yesterday and had no issues whatsoever. Hopefully this can be in the next gen that comes out. Thanks Alex once again.

  3. Bruce

    Can you guys redo your folding stock install vid and include the buffer retaining nut option as well?

    • Kerry Martin

      Thank you for the comment, We are planning on a new video for this install.

  4. Doug (verified owner)

    I often thought of how create a substitute for the spring and pin buffer retainer as I just went without it because they bent to easy and occasionally ended up in the action jamming my gun. This is the best solution.

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