This is a very scarce and rarely ever seen complete grenade launcher for the K98k Service Rifle. It consists of the cup type grenade launcher, the aiming sight, the wrench and the carry case. A long time ago you might see a complete set but they rarely ever turn up these days. This kit is 1942 production and is in great shape. the cups and the cases you will see every so often but you just never see the sight and the wrench. This is the most sought after accessory for 98k collectors to get and very few people have the complete setup.