My airsoft version is almost impossible to tell the from my real AR15 unless you look down the barrel, take out the magazine, or notice the AR has no auto switch selection. Accessories (like rail systems etc.) are interchangeable with the real gun. The tracer unit makes it a lot of fun for use at night on the acreage (must be seen to be believed...). Yeah, they may be geeky, but it is still a lot of fun and my kids love it.