Action Army AAP01 GBB Part - Black Mamba CNC Upper Receiver Kit (AAP01) dye Included are three different types

Included are three different types of retention features that can be used to keep the pistol secured to the holster: adjustable Thumb-Snap

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

offer all the tuning capabilities you need on the field to play any

Aircraft grade aluminum construction

Action Army AAP01 GBB Part - Black Mamba CNC Upper Receiver Kit (AAP01) dye Included are three different typesAction 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)