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  1. Best deal around
    Can't go wrong dealing with these guys. Great customer service and great product.

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  2. Excellent customer service
    Nut was messed up from manufacturers, TNA sent out a replacement one with no issues, great place to deal with.

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Castle Nut (True North Arms)

100% of 100
In stock

Spare castle nut for your commercial-spec or mil-spec buffer tube.

  • She ain't pretty but gets the job done.
  • Weight: 12g

You get:

  1. Castle nut

Compatible with:

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

Installation Difficulty:

Tools required: Armourer's Wrench required for tightening

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