438a3a28_es___Dungeons_and_Dragons_Wiki__Perk_Benefit
[Perk Name] Grenadier [Pro Perk Benefit] You can delay a grenade's explosion by up to two rounds, or you can have it explode immediately after touching the ground. [Perk Benefit] 
Increase the range increments of your thrown weapons by 2 squares.
CoDnD- Call of Duty 3.5 (3.5e Sourcebook)/Chapter 2: New Rules - Dungeons and Dragons Wiki
Perk Benefit