If you want a clear lens on a red dot for 3G that also has a large field of view and is lightweight, consider the Leupold Deltapoint Pro. It is a mini-reflex design. The lens is much larger than the typical T1, T2 and their clones and virtually tint free. It is motion-activated, so battery life is extremely long, potentially years, if it is used just for competition and/or home defense.
The design gives both a wide FOV and unimpaired peripheral vision around the optic as there are no knobs, dials, switches, battery tubes or other objects that might keep you from seeing everything.
Disclaimer: I don't shoot 3G and don't know what might be best for 3G Limited Class, but am responding to the question about lens tint and offering information about FOV and peripheral vision around the optic shooting both eyes open.
I run the 7.5 MOA triangle for HD, but the tip is very fine and could be zeroed for your longer shots and hold on the center for targets closer, or there is a classic 2.5 MOA round dot. The dot or triangle is fully noonday sunlight bright when you need it to be. It goes to sleep when motionless for a full 5 minutes, but then when moved, it comes back to its prior intensity setting. The battery is top loaded and easy to quickly swap without removing the optic, should you need to do so. It will repetitively blink brightly when it is time to change batteries.
I have two of them now. The optic is only 1.9 ounces and about 4.5 ounces or so with the riser and cross-slot (pic rail) mount. It is duty grade so there should be no fear of it blinking out or malfunctioning in competition.
Many red dots do have significant parallax (see separate threads here on test for that). The DPP seems to be among the group that is virtually parallax-free, at least in my experience no more than 1.5 MOA at the extreme side angles of head movement away from center of the FOV.