Need riser block for Mini-ACOG? [Archive] - Glock Talk


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11-24-2011, 09:49
I have a very light weight pencil barrelled upper with a fixed front sight on my flat top AR.

I have a Trijicon ACOG TA 45R-4, which is one of the "Mini ACOGS", (actually originally designed to mount on a fixed carrry handle). It is a simple crosshair with no BDC, and a LaRue Mini DOS QD LT 105 mount.

Problem is that with only 1.5 power magnification, the front sight is much too visible through the ACOG.

I want to keep the fixed front sight along with my Troy BUIS. There is only a crosshair, i.e. no bullet drop compensation on this model of ACOG, so raising it up enough to see over the front sight doesn't concern me.

What kind of riser block can I use under the LaRue? Or, more importantly, is there a better suggestion?

Thanks in advance,


11-24-2011, 19:01
My suggestion: Get used to the FSP. Its really not that big of a deal (And yes I am well aware of your setup)

However, you can buy a Larue Riser for $125 if you really want to raise the optic. (Will cheekweld be an issue then?)