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Advanced Technology

Advanced Technology A5101020 AR-15 Castle Nut Mil-Spec Steel Black

Product Code : 758152900067

$6.99

Mfg Item #: A5101020

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This steel AR-15 castle nut is virtually indestructible and works with commercial, military, and hybrid buffer tubes. It fits most AR-15s and AR variants, but it is not compatible with 308 rifles.

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