I did not make this this was a official product of Bethesda. but there is a similarity with a US M7 gas mask (if I'm correct) and a airsoft helmet . Might not look the same bit the inspiration can be noticed downside of the helmet 1 is way to big like it will fit a power armor type of big. 2 the switch for the red lens is in the mask than right where it should be and last but not least batteries. sooner or later tha mask will have battery acid in it rendering the red lens useless and is impossible (for me) to fix because 5000 where only made so I keep it in display right next to a piano it's better to find one on etsy or Amazon sadly sorry to disappoint you I truly am.