Bring your m1a into the 21st century - Pro Mag Archangel M1A Precision Stock For Springfield M1A/M14 Desert Tan Polymer AAM1A-DT

This is a great upgrade for the M1A. The ergonomics are great and having the adjustable cheek riser and LOP makes this suitable for just about any person or purpose. It does take some minor fitting, though. Just take your time and remove material in very small amounts in the needed areas to ensure a tight fit. Because that's what you want to ensure accuracy.