Hobby Store 75 show their 3D Printed Advanced USW CCK Glock GBBs, just check if your Glock GBB pistol is compatible... "Here's a look at the Carbine Kit For Glocks, It Features Easy Installation, Ergonomic Front Grip, Folding Stock and Also Compatible With All Green Gas Airsoft Brands, G17, G18C, G34, G35.  It Will Also Fit G19 and G23."