You can't go wrong with an Imbel, they are built by an FN licenced factory that still makes FAL rifles. Of all the receivers out there I probably have heard of the least (think very very few) that related to an Imbel receiver and what I have heard was always a very easy fix. Bearing in mind this always relates to building demilled rifle "kits" up on a new receiver, so people are getting right in there with the nitty gritty. SAR48 (Springfield Armory) are Imbel factory rifles sold under the SA banner.