Iron sights for specific gun

[Boyso]

Hi,

I currently own a M4 S-System and I'm having a bit of hassle with my airsoft's current iron sights. First of all, they feel cheap due to their JG nature and the front sight adjustment tool is plastic, therefore, useless :wink:

I'm looking into changing both of them. The problem is the SIR rail.

Currently, the rear sight is like this :


It attaches to the rail on the upper receiver. The problem is, the SIR "rail" is fixed on top of the rail of the upper receiver and I only have a small area to install the iron sight.

Another issue I have is that I'm also using a 30mm Aimpoint (G&P) on a cantilever mount. Due to the fact the Aimpoint is sitting on the second rail, I cannot cowitness my sights.

Is there any kind of adapter that would fit inside that small area and replace it with a rail on top where I could add maybe some Troy BUIS or some MBUS instead?

I tried Googling it, but I really don't know what exactly to search :/

Here are the pictures :

[grantmac]

If you moved your rear-sight up it would be completely useless. Unless you went with a rail mounted front sight as well.

However if you bought a low-mount for your Aimpoint it would most likely co-witness just fine.

-Grant

[Boyso]

Yeah I'd love to replace both sights for like MBUS and place a gas block up front.

I tried with the standard L mount which makes the iron sights aim like one CM below the red dot.

[grantmac]

That 1cm lower is exactly what you want. A lower 1/3rd co-witness is generally considered to be idea.

An absolute co-witness is not especially useful unless you are running flip-up sights on both ends of the rifle.

-Grant

[Boyso]

Ah that's good to know, but still it's a bit too low since with the normal L mount, part of my view is obstructed by the Aimpoint lense ridge.

With the cantilever, I can't aim thru the hole in the mount.

I guess I'll have to do it myself and make it ^^