The TRS-25 with riser is $115. It is a great red dot with 3000 hour battery life. I found one once at GM on sale for $90.....
.thanks for the offer! But I had already placed the order before I posted the note above. It's in the mail...I have a Primary Arms Red Dot I'd sell ya for your price shipped. It isn't a Micro Dot, more like a Vortex Strikefire.
It's down there in the Accessories if you are interested.
A question regarding red dots: With a fixed front sight, an A2, how does that change mounting options? I'm new to the AR world.
The AR with or without the front sight needs the riser. The AR is designed to have a tall sight. I hope I understood your question correctly.
Not a stupid question, I only have experience with the TRS-25 with the factory riser. It is the perfect height. You can just buy one and run it without worry.