KerBlaster for Krieg

Hi, just wanted to check with you guys which is the best prefix/parts for a Kerblaster for my explosive/melee Krieg hybrid. Farming the machines for it, I’m guessing Torgue grip is best but how about prefix?

Have one in front of me that’s Torgue grip, Dahl stock and Plump prefix. Worth grabbing or should I continue farming the machines?