Description
Upgrade your AR buffer system with the CMMG Nut Receiver Extension Mk4. Designed for durability and precision, this essential part is compatible with various AR setups. The sleek black finish enhances your firearm’s aesthetic while ensuring reliable performance. With a length of 3.9 inches, this receiver extension nut provides a perfect fit for your needs. Trust CMMG’s quality craftsmanship for your next build or upgrade.
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