Good work, looks great.
my first job was gorilla gluing a Houge sleeve grip for a glock on my Springfield XD. Cut out the grip safety with a kitchen knife!!
If it works and looks okay no reason to not like it.
I'm gonna stop you right there, you just said an AR-15 is a high-powered rifle. It is obvious you don't know anything about guns and I shall ignore anything you say from this point on.