You have a CETME fire control group. The selector that came with that group and plastic housing has been modified so that when the selector is in the...
Very few of those were ordered and so they are not widely seen and so they tend to be VERY pricey. Also those are typically sold as complete kits or...
Thomas Jefferson -
"When government fears the people, there is liberty. When the people fear the government, there is tyranny."
"Those who hammer their guns into plowshares will plow for those who do not."