For attaching 14mm CCW accessories to your Action Army AAP-01 GBB Pistol, Airsoft Atlanta got the TTI AAP-01 Threaded Receiver Adapter for it available at their store... "The TTI AAP-01 Threaded Receiver Adapter updates the look of your current airsoft Action Army AAP-01 and allows you to throw on any 14mm- attachment! Quick and easy install

14mm CCW adapter for use with all common attachments (faux suppressor, tracer unit, muzzle devices)

Made by TTI Airsoft."