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NBS Mil-Spec Carbine Receiver Extension (Castle) Nut

Name: NBS Mil-Spec Carbine Receiver Extension (Castle) Nut
Brand: Dirty Bird Industries
SKU: retailer_offer:dirtybirdusa.com:1339

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MSRP

$3.95

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Updated

Aug 26, 2026

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Specifications

Brand

Dirty Bird Industries

Description

Mil-spec carbine castle nut/lock ring for securing lock plate on an adjustable stock for AR-15, M4.

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NBS Mil-Spec Carbine Receiver Extension (Castle) Nut

Specifications

Description

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