LBE Unlimited ARLPGB Low Profile Gas Block .750" Black Nitride 4142 Steel for AR-15
https://www.tandktactical.com/shop/765857617749-lbe-unlimited-arlpgb-low-profile-gas-block-750-black-nitride-4142-steel-for-ar-15-24521
https://www.tandktactical.com/web/image/product.template/24521/image_1920?unique=c2930f3
LBE's Low Profile Gas Block features a .750" diameter and is made 4142 steel with a black nitride finish. It is compatible with your AR-15.
