One thing to understand about the promag archangel M1A stock. First, despite what Promag customer service ardently tells folks, It' NOT a drop in for the chinese receiver. Some easy modifications must be made.
2nd, it is NOT a "precision rifle stock" from the builder/shooter point of view. It is a "precision molded" rifle stock.
It's ergonomics and the fact that it has adjustaable butt and cheekriser make it a decent upgrade. However, the stock offers zero features that "enhance" accuracy other than shooter "comfort"