HR9 Integrally Suppressed Upper0 by admin2024-01-232024-06-01 Our HR9 integrally suppressed upper with integrated MEAN bearing delayed bolt system. This system comes with our proprietary SD barrel, SD suppressor, two 40 round ExoMag magazines allowing you to mate this with any AR-15 milspec lower you may have. HR9SD 6 months ago/ 140 views You may also like HiTec Suppressors Teaser:Short Part 11 34 views HR9SD,Suppressors Caleb Downing is showing off a new project 21 views HR9SD,Suppressors HiTec Arms SD Suppressor Demo 43 views HR9SD,Suppressors Forgotten Weapons – BRT-HTA 119 views HR9SD HR9SD DB 148 views HR9SD