The M6 has no extractors. You have to remove the spent case with very dextrous fingers or some manner of tool. Remember that the various survival rifles ( there were a few other models, including a simple .22 Hornet) were developed specifically for the USAF with wieght and stowability the priority. Given the cost factors in producing this rifle from the famed czech industry, we are lucky it's as fine as it is for the price.