The EPC-9 upper receiver is the ideal upgrade for any AR9 build, designed to enhance performance and versatility. Featuring a last round bolt hold open mechanism, it ensures smooth and reliable operation, making it a must-have for your pistol caliber setup. Compatible with most standard AR-15 barrel nut and handguard combinations, this upper receiver offers flexibility and ease of integration into your existing build. With the EPC-9, you can elevate your AR9 to new heights, delivering improved functionality and precision for your shooting experience.

The last round bolt hold open mechanism ensures the firearm remains locked open after the last round is fired
It accepts most AR-15 compatible barrel nuts and handguards, offering versatility and compatibility with various components
Dimple above threads allows for proper handguard timing, ensuring a secure and stable attachment of accessories
Standard AR-15 takedown and pivot pin lug pattern ensures compatibility
Machined from custom-forged 7075-T6 aluminum, offering a robust and lightweight structure
Features laser-engraved t-marks for precise and clear markings

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