CMMG 22BA596 Assembly 22LR AR-15 Black Nylon
https://www.tandktactical.com/shop/815835010168-cmmg-22ba596-assembly-22lr-ar-15-black-nylon-22311
https://www.tandktactical.com/web/image/product.template/22311/image_1920?unique=440e87c
Specifically designed for use with 22AR Conversions to prevent spent casings from becoming lodged between the bolt and charging handle.
