Raid
noun
An assault into a place is a raid. 殴り込み usually means a raid by gang members or delinquents, where they barge into someone's home or enemy territory to start a fight.
なぐりこみ
The reading comes from the word 殴る and the kanji 込.
殴り込みの前に早めの昼食を取りました。
We had an early lunch before the raid.