It most certainly is.

“ArmaLite, or Armalite, is an American small arms engineering company, formed in the early 1950s, in Hollywood, California.”

https://en.m.wikipedia.org/wiki/ArmaLite 

 I stand corrected. Thanks 🙏  

 You must be an AK kinda person… no wonder you don’t think it’s American. It’s ok comrade. 

 That’s not it. 

When I think of American Fighting Rifle 

My mind goes to M-4 & M-16

But I’m old 🤣
M 249 way back 
For Saint Barbara & the 
Splashes 
Over 

That’s all. 🫡🖖🍻🥂🤧 

 That's what AR15'a are modeled after.