Wyhaq's latest tech guide is how to install the CowCow Enhanced Plastic Nozzle Set For AAP-01 GBB Pistol... "This video is a walkthrough install modification mod guide for installing the full cowcow aftermarket nozzle set for the aap-01 airsoft toy by action army. This video is also useful for other nozzle replacements and that sort of thing for gas blowback airsoft toys."