There were some made by Matel, if I recall correctly. "Brrrrrrrr, brrrrrr, brrrrrr".
I remember getting issued an M-16 during basic training at West Point in 1985 and saying "Damn, this is exactly like the p.o.s. plastic rifle my 7 yr old brother was playing with when I left home last Tuesday - it just weighs more".
Me and my brother had one of those each back in the 1960s or early 1970s. Looked just like the real ones. Made a machinegun sound, too.
