I have and have owned several ZG 47 Brno rifles. If you check ahead of the reciever ring on the barrel you will find two numbers. This is the date of manuf. These rifles came with a single trigger non set.The 21 H had double set triggers and the ZKK had a single set trigger. The rifles that I own are 7x57, 30-06. I have owned 7x64 and 9.3x62. The rifle came with a very plain stock no cheek piece, high comb and no cheek piece and nice wood high comb and cheek piece. The scope on the rails is made by ziess. It is one of the few set ups that stay lined up when you remove and return it. I have collected Brno rifles for years and own several model 21's also. I do not like the new brno rifles and would not own one. The older ZKK's are OK.