Castle Nuts

Secure your buffer tube assembly with precision-engineered castle nuts designed for reliable lockup and stability. These essential components provide critical tension for proper buffer tube alignment and stock function in AR-platform rifles. From basic builds to premium configurations, our castle nuts ensure dependable performance and proper assembly retention.

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AT3 Tactical Castle Nut for AR15

(102)

AT3™ Castle Nut for AR-15 Buffer Tubes – 9 Colors Available

(4)

Strike Industries V2 Enhanced AR-15 Castle Nut with Extended QD Endplate

Fortis K1 Enhanced End Plate with Friction-Fit Castle Nut - AT3 Tactical

(6)

Fortis K1 Enhanced End Plate with Tapered Castle Nut for AR-15

Fortis K2 Enhanced End Plate with Ratcheting Castle Nut - AT3 Tactical

(5)

Fortis K2 Enhanced End Plate with Locking Lever and Castle Nut

Armaspec Self-Retention "No Stake" Castle Nut and QD End Plate

(1)

Armaspec Self-Retention “No Stake” Castle Nut and QD End Plate

(2)

Strike Industries Multi-Function End Plate with Anti-Rotation Castle Nut

Armaspec Self-Retention "No Stake" Castle Nut

Armaspec Self-Retention “No Stake” Castle Nut

(2)

Strike Industries Enhanced AR-15 Castle Nut with Extended QD Endplate

Fortis Standard AR-15 Castle Nut - AT3 Tactical

(2)

Fortis Standard AR-15 Castle Nut

LBE Unlimited AR-15 Castle Nut

(4)

LBE Unlimited AR-15 Castle Nut

Sale!

Open Box Return – AT3™ Castle Nut for AR-15 Buffer Tubes – 9 Colors Available – Black

Lantac RPS Ratchet Plate System - Castle Nut & End Plate

(1)

Lantac RPS Ratchet Plate System – Castle Nut & End Plate