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8/7/2017 10:35:02 AM EDT
Alright, so I bought my first AR last week. Went with an Aero Precision AC15m. I was wanting to put a rail on it. I've been looking around at options. Being a midlength gas system seems to limit my options quite a bit. I am wanting to keep the FSB as I like the look and durability that seems to come with it. Could I put a 9 inch rail on the rifle and keep the fsb? I know they have the cutout rails but those are another $100-$150. I'm not dead set against getting something like the Centurian C4 but curious if I could fit a 9 inch rail.

Any input would be awesome!
8/7/2017 11:30:16 AM EDT
[#1]
Get the Centurion mid length FSP cutout rail. You will not regret it.
8/7/2017 11:47:28 AM EDT
[#2]
I put a Surefire drop in rail on mine.

I think Troy Industries makes one that is extended for fsb cutout?

Daniel Defense makes a drop in that locks up tight also.

If you want free float, Centurian is way nice, as stated above.
8/7/2017 12:33:36 PM EDT
[#3]
The 9'' C4 will work fine.

But you will wish you had the cutout.
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