Six-position 7075-T6 mil-spec carbine receiver extension, hardcoat anodized with a thin-film lube coat.
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White Label Armory's carbine buffer tube is a six-position, mil-spec diameter receiver extension in 7075-T6 aluminum, hard coat anodized and finished with a thin-film lube. It takes carbine buffers and carbine action springs and fits mil-spec collapsible stocks and braces, which are a tighter fit than commercial-diameter tubes.
Pair it with an end plate and castle nut, a carbine buffer, and a carbine spring to complete the recoil system on a standard AR-15 lower.

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White Label Armory AR-15 Carbine Buffer (3.0 oz)
$16.99
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Add the White Label Armory AR-15 Mil-Spec Carbine Buffer Tube to your build and see how it enhances your platform.