Use this stock if you have a shorty M1A like a SOCOM or Scout Squad product With all the shorter barrel. This stock is fabricated from a proprietary carbon fiber composite which makes the stock sturdy still lightweight. The magwell is relieved of fabric so journal changes are quickly. 1913 https://ebr-stockebr-chassis76295.popup-blog.com/29016419/top-sage-international-mini-ebr-stock-secrets