completely normal. actually its really entertaining when it does that around alot of people that have no idea it does that then they all turn red and look around and start pointin fingers for some reason lol. dont worry about it and use it to ur advantage! idk how.....
Ul'd pmr dust black
ndz on/off-red, ndz eyecovers-red
ndz clamping feed collar-red, ndz slik trigger-red
proto back cap-red, ndz asa w/ gauge-red, ndz spring detents,lucky un1tec-back red front black
tech t l7 bolt