M4 / AR Castle Nut, Receiver Extension (Buffer Tube) castle nut. Matte black finish.
M4 Receiver Extension Nut
CMMG
Gun Stuff/Rifle Parts/Buffer Tubes / Kits / Buffers / Parts
MSRP:
$14.40
$9.99
(You save
$4.41
)
CMMG-55CA9CB
815835017426
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MSRP:
$58.80
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MSRP:
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$42.99
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Bravo Company USA
Mk2 Receiver Extension
MSRP:
$55.00
$49.95
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