Daniel Defense Castle Nut AR-15

AR-15 castle nut
Daniel Defense Castle Nut - Rifle parts - 15-057-20039 - 1
Daniel Defense Castle Nut - Rifle parts - 15-057-20039 - 2
Daniel Defense Castle Nut - Rifle parts - 15-057-20039 - 3
Daniel Defense Castle Nut - Rifle parts - 15-057-20039 - 4
Daniel Defense Castle Nut - Rifle parts - 15-057-20039 - 5
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Daniel Defense Castle Nut - Rifle parts - 15-057-20039 - 1
The Daniel Defense Castle Nut AR-15 secures the carbine buffer tube and end plate to the AR-15 lower receiver. It fits both mil-spec and commercial carbine buffer tubes. The nut has staking recesses... Read more
14,99 €
  • Product Code: 15-057-20039
pcs

The Daniel Defense Castle Nut AR-15 secures the carbine buffer tube and end plate to the AR-15 lower receiver. It fits both mil-spec and commercial carbine buffer tubes.

The nut has staking recesses for the end plate: once the end plate is staked into the recesses after installation, the nut cannot back off in use. It has a heavy magnesium phosphate finish. A castle nut wrench is required for installation and removal.

Daniel Defense Castle Nut AR-15 - Features:

  • Product type: castle nut
  • Compatibility: AR-15, mil-spec and commercial carbine buffer tubes
  • Finish: heavy magnesium phosphate
  • Design: staking recesses for the end plate
  • Weight: approx. 14 g

Product text updated 28.10.2026.

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Ruoto Mega Store Espoo
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Martinkuja 6
02270ESPOO
Weekdays 10 - 20, Saturdays 10 - 18, Sundays 11 - 16
Ruoto Mega Store Tuusula
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Pakkasraitti 2
04360TUUSULA
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Sellukatu 8
33400TAMPERE
Weekdays 10 - 19, Saturdays 10 - 18, Sundays 11 -16
Ruoto Mega Store Kaarina
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Laasmäenkatu 6
20780KAARINA
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Ruoto Mega Store Oulu
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Alasintie 10
90400OULU
Weekdays 10 - 18, Saturdays 10 - 18, Sundays closed
Ruoto Super Store Kuopio
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Leväsentie 2
70700KUOPIO
Weekdays 10 - 18, Saturdays 10 - 15
Tuusula External Warehouse
Not sold in this store
Pakkasraitti 2
04360TUUSULA
Weekdays 10 - 20, Saturdays 10 - 18, Sundays 11 - 16
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