Description
M4 / AR Castle Nut, Receiver Extension (Buffer Tube) castle nut. Matte black finish.
-31%
CMMG 55CA9CB M4 Receiver Extension Nut
$4.72 Save:$2.00(31%)
Description
$4.72 Save:$2.00(31%)
M4 / AR Castle Nut, Receiver Extension (Buffer Tube) castle nut. Matte black finish.
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