The B&T GL-06 is a fully licensed replica grenade launcher, originally made by Brügger & Thomet of Switzerland. The stock and receiver is made out of polymer, and the barrel and front guard are all metal. All of the picatinny rails on the B&T GL-06 Airsoft Grenade Launcher are made out of metal, and will be able to fit virtually any accessory. The B&T GL-06 Airsoft Grenade Launcher is compatible with any 40 mm Grenade, and fires whatever you have loaded into the grenade all at once. Designed for police forces in Europe to be used as an anti-riot weapon, the B&T GL-06 Airsoft Grenade Launcher is designed to be easy to carry, operate, and most importantly, accurate!