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SKU: 430112187
Built for AR9 pistol-caliber builds, this upper receiver provides a solid foundation when you want a 9mm Luger setup with a last round bolt hold open feature already in place. It accepts most AR15-compatible barrel nuts and handguards, which gives builders flexibility when pairing it with common components. The standard AR15 takedown and pivot pin lug pattern, along with the dimple above the threads for handguard timing, supports a straightforward assembly process. Finished in Kodiak Brown and supplied with the pre-installed LRBHO assembly, it is aimed at shooters assembling a purpose-built pistol-caliber carbine without unnecessary extras.
Includes Pre-installed
Last round bolt hold open
Accepts Most
AR15-compatible barrel nuts and handguards
Standard Ar15
Takedown and pivot pin lug
Machined From
Custom forged 7075-T6 aluminum
Laser Engraved
T-marks support consistent handguard setup
No. The title identifies it as an assembled upper receiver with no barrel.
It is described as an EPC-9 upper for AR9 builds and uses a standard AR15 takedown/pivot pin lug pattern.
Yes. The listed features include an LRHBO mechanism, and the package includes a pre-installed last round bolt hold open assembly.
It is described as accepting most AR15-compatible barrel nuts and handguards. Compatibility is stated as 'most,' so exact fit should still be verified for the specific parts being used.
The included items are the upper receiver and a pre-installed last round bolt hold open assembly.