KAK Industry AR15 Mil-Spec Castle Nut

KAK Industry
$7.99 $6.95
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The KAK AR-15 MIL-SPEC Castle Nut is 100% made in the U.S.A. from hardened steel for the durability and strength you'd expect. The narrower staking cuts allow the end plate to be staked into the castle nut for a worry-free installation.