FMJ, aka Full Metal Jacket, helps increase the bullet penetration power for the HDR, which is much needed considering that it is a sniper rifle. At last, the 9 Rounds Mags lets you carry more ...

The HDR is a high-damage dealing bolt action sniper rifle in COD: Mobile that got introduced with the Season 3 'Rush' update. It is a great weapon that players can use to take out other players ...