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    • Castle Nut (Canadian National Arms)
  • Castle Nut (Canadian National Arms)
  • Castle Nut (Canadian National Arms)

    Castle Nut (Canadian National Arms)

    Canadian National Arms (CNA)

    MSRP:
    Now: $13.17
    (You save )
    (6 reviews) Write a Review
    SKU:
    688738046532 688751
    Shipping:
    Calculated at Checkout

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    • Overview
    • Reviews

    Product Description

    Spare castle nut for your commercial-spec or mil-spec buffer tube. A higher quality nut than the bargain TNA nuts. They look great and are symmetrical with smooth running thread and three notches for staking.

    • 3 staking notches
    • Precision machined, high end shite
    • Blackened steel
    • Works with regular armourer's wrenches
    • Weight: 19g

    You get:

    • (1) Castle nut

      Compatible with:

      • AR-15 commercial-spec or mil-spec carbine buffer tubes

      Installation Difficulty: 

      Tools required: Any of our Armourer's wrenches

      Installation notes: Sometimes people stake the castle nuts to the end plate for extra security. In that case you will want a pointy punch.

      Product Videos

      Custom Field

      Exportable Yes
      Fits Lettermail (<20mm thick) Yes
      Small, Loose Part Yes

      Product Reviews

      Write a Review

      Write a Review

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      Castle Nut (Canadian National Arms)
      Canadian National Arms (CNA)
      Castle Nut (Canadian National Arms)

      6 Reviews Hide Reviews Show Reviews

      • 5
        Fit my AK-AR Stock Adapter + Government Reclassification

        Posted by Noah on 11th Mar 2020

        I needed a "delta ring" which I was confused at first as to what it was, and had to google around quite a bit, so happy that TrueNorthArms carries this and I love the letter I also received about the Liberal Governments plans to confiscate and reclassify firearm laws, I wrote an email to the Justice department about my agreement with this proposal being an uneducated decision from uninformed government. This Castle Nut is exactly what I needed to complete my AK-AR build, thank you so much TNA, I will be building an M4 very soon and am gonna be buying lots of parts from TNA :)

      • 5
        Works great

        Posted by Matte on 25th Mar 2019

        Quality nut great finish

      • 5
        Great Quality Nut

        Posted by PH on 25th Mar 2019

        The quality of this castle nut is surprisingly superb. It is very well constructed in smooth machined aluminum finish that fits very well on my CNA Mil-Spec buffer tube I also ordered. It does not deform nor damage easily when using an AR wrench tool. It is a great upgrade addition to my custom AR built platform, which I highly recommend this castle nut to compliment your AR.

      • 5
        Good nut

        Posted by Ric on 25th Mar 2019

        What can you say about a castle nut? The sizing was great, it threaded on smooth, and the coating looked good. Put a little lube on the tube threads and torqued it to spec. Stake it in place at the provided gaps and it'll outlast your rifle.

      • 5
        Basic mil spec nut

        Posted by Andrew Hardy on 25th Mar 2019

        I bought this to relieve some OCD tendencies (see my review on the buffer tube kit so I don't have to type a yard long). The finish is nice and has staking cutouts.

      • 5
        Very good

        Posted by Peter on 25th Mar 2019

        Fit and Finnish are very good, I will definitely purchase another. It is a very strong, well machined part, threads are cut well.

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