A tutorial video by CS Airsoft on cleaning your gas blowback pistol. Good for beginners as well as veterans who think they might want a refresher in keeping their GBB pistols in tip top shape... "In this video I show you how to clean and maintain an Airsoft GBB (Gas Blow Back) pistol with my Tokyo Marui Glock 17 and thus keep it in good condition for as long as possible."