CMMG 55DA36F Low-Profile Black Chrome Moly Steel
https://www.tandktactical.com/shop/815835012414-cmmg-55da36f-low-profile-black-chrome-moly-steel-14207
https://www.tandktactical.com/web/image/product.template/14207/image_1920?unique=70784c3
.936" Low profile gas block, includes installation screws. Made of 4142 chrome moly steel.
