Aero EPC-9 9/40 Threaded Assembled Upper Receiver w/LRBHO - Anodized Black

Aero Precision EPC-9 assembled upper receiver with Last Round Bolt Hold Open (LRBHO) for AR-9 builds. This upper is threaded for 9/40 barrels and accepts most AR-15 barrel nuts and handguards. Features a dimple above the threads for proper handguard timing and uses a standard AR-15 takedown/pivot pin lug pattern. Machined from 7075-T6 aluminum and finished in anodized black.

• Last Round Bolt Hold Open (LRBHO)
• 9/40 threading
• Compatible with most AR-15 barrel nuts and handguards
• Dimple above threads for proper handguard timing
• Standard takedown/pivot pin lug pattern