Re: M4 AR-15 Best Optics
There are plenty of options for a CQB sight on an AR, but I would only really consider 2, especially if this is your 1st mounting. These are my personal preferences/opinions, so don't feel like I these are your only choices. Handle both optics if you can to see if you like them.
I would rank Aimpoint #1; whether you decide on a CompM2, M3, M4, T-1 or H-1 is a matter of personal preference and budget. I have 2 M2s and a T-1, and although the T-1 definitely has more of a "cool" factor to it, I think the M2 or M3 is much more user friendly - the dial for brightness is so easy to turn that you can do it with one finger. In contrast, the dial on the T-1 or H-1 is very stiff to start out with, but it loosens a bit over time.
#2 on my list would be an ACOG. I actually prefer a nice ACOG over the Aimpoint for its versatility and guaranteed reliability (uses tritium, no batteries), but it is a more expensive option than the Aimpoint. If you decide to go this route, for CQB work, make sure you get a dual illuminated BAC model. Lots of dudes don't seem to realize this, but the BAC models were meant to be used with both eyes open. Go to Trijicon's site and watch the demo of how it works. Now, you just need to decide which magnification and reticle style/color. I have a 3.5x and I just sold a 4x, but if I were to get another one, I think I would go with a lower magnification. I am not disappointed in mine at all though, as it is cool to have a scope that you can use with 2 eyes open for quick up close engagement, but can still take a further precision shot with a squint if you need to. I would go with their horseshoe green reticle if you can get one, but a chevron or donut will do just fine. I have a red donut and I like it. Awesome durability too, and Trijicon has superb customer service. I assume you are gonna mount this on a flattop, so be sure to get a mount. I use the Larue LT-100, which is the best mount in my opinion. Also, make sure you have the right eye relief. This is not a problem if you have a collapsible stock, but if you are using a standard A2 or pinned stock like I am in this shitty state of NY, you need to get the mount aft or choke up a bit on the cheek weld if you are mounting BUIS behind it, which is essential.
This being said, I consider it imperative to have BUIS on your rifle, and sight them in before your class. You don't want to be stuck in a position where you had to remove your sight for whatever reason and find that your irons are not dialed in, stalling the class. Good luck with whatever you choose.
