8% off
Price history at BattleHawk Armory
Recorded at BattleHawk Armory since Oct 26, 2026: low $6.40 (Nov 1, 2026), high $6.65 (Oct 26, 2026). Last checked Nov 1, 2026.
Product Description
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.
Advanced Technology A5101020 AR-15 Castle Nut Mil-Spec Steel Black
$6.40
$6.99
8% Discount
You save $0.59
In Stock
at BattleHawk Armory
Price verified 3d ago
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Product Details
Brand
Advanced Technology
MPN
A5101020
Price history at BattleHawk Armory
Recorded at BattleHawk Armory since Oct 26, 2026: low $6.40 (Nov 1, 2026), high $6.65 (Oct 26, 2026). Last checked Nov 1, 2026.
