Wotzat Fa does a very video of the Armorer Works Kit for airsoft Glock. This comes with a both front and rear sights, has a folding stock, a 20mm rail system and made for Tokyo Marui, Armorer Works, WE Aisoft, and Army Armament G17 GBB pistols.. "Mine are Tokyo Marui Glock 22 Glock 34, and Glock 17. They all fit. So easy to install, only one screw to remove and the part is in within the kit itself. I like it, I like it a lot."