During the early wars of the 1800's and early 1900's (even WWI and WWII) the military used bolt action rifles, lever guns, single action pistols, and so on! Are those considered assault weapons??? NOPe. Plenty of Indians were assaulted with lever guns!
The M4 variants and AK's we have on the civilian market are NOT assault weapons by definition!
May God make smooth the path you follow!