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Receiver Extension: CMMG Fastback Receiver Extension, 6 Position Deploy your favorite stock (or brace) faster than ever. The Fastback Receiver Extension attaches to any firearm that accepts a Mil-Spec receiver extension (buffer tube). Once installed, this allows you to easily pull the stock (or brace) back to an extended position, without pressing a release button. Specifications Brand: CMMG Manufacturer part #: 55CA93E UPC: 810046230572 Category: On Gun & Other Accessories › Receivers Shipping weight: 1 lb Country of origin: US Ships fast from GunCycle — free economy shipping on orders $99.99+.
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🇺🇸 Ship from USA · On Agora since 2026
$62.91