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Posted: 9/9/2010 5:43:31 PM EDT
I want to change the gas block on my ORC to a rgular fixed front sight. The factory one only has one cross pin and it isn't as "long" as a startard FS. Can I do this with the factory barrel?
Link Posted: 9/9/2010 5:46:39 PM EDT
You can, but the barrel will have to be cut for the pins. ADCO charges $90-$130 to do it.
Link Posted: 9/9/2010 7:56:46 PM EDT
Well crap. What other gas blocks can I put on it then? Maybe a low profile?
Link Posted: 9/10/2010 6:05:11 AM EDT
I don't know the barrel OD off the top of my head, but I'll venture that someone makes a lo-pro gas block that would fit. What's wrong with the existing set up?

Visit Brownells' site and look at their gas block offerings.
Link Posted: 9/10/2010 6:25:19 AM EDT
I want to put a 9 inch FF rail on it.
Link Posted: 9/10/2010 11:29:19 AM EDT
If you're going to go lo-pro, why not get a longer rail? It will fit over a lo-pro block. There are a bunch of great folding front sights that are handguard rail mountable. JMO.
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