The LBE AR-15 Castle Nut is made of 4140 steel and has a Magnesium Phosphate finish. Made in the USA.
LBE Unlimited Castle Nut, For AR-15, Manganese Phosphate Coated 4140 Steel ARCNUT
Lantac 556 Mil-Spec+ Bolt Carrier Group Black Nitride
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Lone Wolf Distributors Lower Parts Kit for Compact Handguns
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LBE AR Castle Nut
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329 in stock
Additional information
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