Huxwrx 1858 Flash Hider-QD 7.62mm Fits M26x1.5 LH Black
https://www.tandktactical.com/shop/706433763306-huxwrx-1858-flash-hider-qd-7-62mm-fits-m26x1-5-lh-black-51321
https://www.tandktactical.com/web/image/product.template/51321/image_1920?unique=9132419
Muzzle device length is 2.3, length added to barrel is 1.7 inches
