Star Wars: Dawn of Darkness
The concussion grenade was a type of grenade which in it’s most standard form would explode with a small blast radius, releasing a force of energy that was kill or cause injury to most living things within it’s blast area and damage or destroy most equipment in the same area.
Two other variants were the Sonic Concussion Grenade which would stun it’s victims rather than kill or damage, and a Physical Concussion Grenade which was intended for use against droids and equipment rather than living beings.
Stun Damage: NA
Rate of Fire: Single
Rodney Thompson, Sterling Hershey, Owen K.C. Stephens, JD Wiker, Star Wars Roleplaying Game: Rebellion Era Campaign Guide (Seatle: Wizards of the Coast, 2009), p. 50.