Use this stock When you've got a shorty M1A similar to a SOCOM or Scout Squad design While using the shorter barrel. This stock is crafted from a proprietary carbon fiber composite which makes the stock strong nonetheless lightweight. The magwell is relieved of fabric so magazine changes are speedy. https://m14ebrchassis66305.tinyblogging.com/not-known-factual-statements-about-ebr-stockebr-chassis-73189429