Actually , the Reising was pretty good if you look at it in a LE use environment . The Marines could not get any Thompsons at the time and went with what was available NOW . They were not built to mil-spec as far as mud and dirt and parts interchangeability . The Marines cleaned these like they were Springfields , Thompsons , BARs , or M1919A4s . This is when the problems began . When the new weapons were unloaded from the boats , the commander had the Reisings on shore thrown into the river because there was no way or time to try to unmix all the parts in those guns .
Chris