Armaspec
Armaspec Self-Retention Castle Nut, Aluminum Black - ARM6521-BLK
SKU: ARM6521-BLKUPC: 810048493999
$29.00
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Self-retention castle nut manufactured from aluminum in black finish. Designed for AR-15 style rifles with mil-spec buffer tube compatibility. Features self-retention design to prevent over-torquing and simplify installation.
