"Big Red" is a nickname given by Fred to the USGI stocks made to the 11010263 drawings, they are beefier where it counts: around the receiver (more wood to support glass bedding) and foreend (stiffer to resist POI changes from sling tension, and better barrel support for better accuracy.) They were made both as replacements for broken early "skinny" stocks and for use on military NM rifles.What is Big Red Birch? I found some on Army surplus store, reasonable prices. Any advantages to owning them?
Here's a thread I started asking the very same question, lots of pics: MCORPS1