Action Army AAP01 GBB Part - Black Mamba CNC Upper Receiver Kit (AAP01) dye The bullet window with the

The bullet window with the fake 556 rounds isn't just for show

Includes 3 separate Adapters: AR-15 GI Handguard adapter

at bottom and in center of housing to ensure the hopup unit is exactly centered

Magazine holds 19 rounds

Action Army AAP01 GBB Part - Black Mamba CNC Upper Receiver Kit (AAP01) dye The bullet window with theAction Army AAP01 GBB Part Black Mamba CNC Upper Receiver Kit (AAP01). A very nice full metal slide upgrade to any existing stock AAP pistol. Full top rail and extra enhancements for the ultimate custom pistol. Made to fit specifically on the airsoft AAP01 gas blowback pistol. Official Action Army product. Easy to install and upgrade with. Has outer metal 14mm CCW threaded extension on the slide built in. STYLE 1 (AAP01)